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How MiniDisc Worked

https://obsoletesony.substack.com/p/how-minidisc-worked
1•ecliptik•2m ago•0 comments

Giant Sequoias Are Taking Root in an Unexpected Place: Detroit

https://www.smithsonianmag.com/smart-news/giant-sequoias-are-taking-root-in-an-unexpected-place-detroit-180986557/
1•bookofjoe•3m ago•0 comments

AI and the Death of Literary Criticism

https://quillette.com/2025/05/25/a-the-english-literature-department/
1•sien•3m ago•0 comments

Glaxnimate – Fast and simple vector graphics editor

https://glaxnimate.org
1•josephcsible•5m ago•0 comments

NASA Sets Coverage for 32nd SpaceX Resupply Mission Departure

https://www.nasa.gov/news-release/nasa-sets-coverage-for-32nd-spacex-resupply-mission-departure/
1•MarcoDewey•6m ago•0 comments

AI compliance writer – automate compliance workflow up to 80%

https://tm-report-writer.streamlit.app
1•sauravrandom•14m ago•2 comments

SaaS for Custom Classification Models

1•santanaforai•24m ago•0 comments

Map Projection Essentials

https://www.mapthematics.com/Essentials.php
1•mmooss•28m ago•0 comments

I built a full-stack LLM prompt efficiency suite for every AI developer

https://prompt-efficiency-suite.lovable.app/
1•dulra•30m ago•1 comments

Trump demands list of names of Harvard's foreign students

https://www.independent.co.uk/news/world/americas/us-politics/trump-harvard-international-students-enrollment-b2757616.html
5•belter•32m ago•0 comments

Does anyone use backspace navigation anymore?

1•stnvh•34m ago•3 comments

I Built a Free Instagram Story Templates Builder

https://templates.bunnybooster.com
1•lumber_prog•36m ago•1 comments

8% of the reviews submitted to Tripadvisor in 2024 were fake

https://www.cnbc.com/2025/05/26/heres-how-many-fake-reviews-tripadvisor-found-on-its-website-in-2024-.html
4•belter•38m ago•1 comments

Show HN: Crymaps – A map of the best places to cry

https://crymaps.netlify.app/
2•izanamador•44m ago•0 comments

Keep the Future Human

https://keepthefuturehuman.ai/essay/
2•Improvement•54m ago•2 comments

The Grugbrained CEO

https://www.sam-rodriques.com/post/the-grugbrained-ceo
15•_ihaque•54m ago•14 comments

The satellite that will 'weigh' 1.5T trees

https://www.bbc.com/news/articles/crldwjj6d6no
3•ricecat•55m ago•0 comments

Ten Years of JSON Web Token (JWT) and Preparing for the Future

https://self-issued.info/?p=2708
22•mooreds•57m ago•1 comments

A phone-free prom night

https://sfstandard.com/2025/05/24/sf-prom-no-phones/
1•MarcoDewey•1h ago•0 comments

How Retirement Was Invented

https://www.theatlantic.com/business/archive/2014/10/how-retirement-was-invented/381802/
2•Anon84•1h ago•1 comments

When Was Full Throttle Released?

https://www.doublefine.com/news/when-was-full-throttle-released
1•atan2•1h ago•0 comments

We broke down the Sam Altman and Jony Ive video

https://sfstandard.com/2025/05/23/sam-altman-jony-ive-video/
28•herbertl•1h ago•9 comments

Utah ban on gender-affirming pediatric care "cannot be justified" by science

https://www.motherjones.com/politics/2025/05/utah-transgender-youth-affirming-care-ban/
7•Anon84•1h ago•1 comments

Large Language Model-Powered Agent for C to Rust Code Translation

https://arxiv.org/abs/2505.15858
2•MarcoDewey•1h ago•0 comments

Ask HN: Competitor launched – reach out or keep going?

2•grandinquistor•1h ago•1 comments

Ask HN: Where do hackers meet in London?

1•nerder92•1h ago•2 comments

Discord might use AI to help you catch up on conversations

https://www.theverge.com/apps/673208/discord-ai-forums-anniversary-gamechat
2•ColinWright•1h ago•0 comments

Cooper's Hill Cheese-Rolling and Wake

https://en.wikipedia.org/wiki/Cooper%27s_Hill_Cheese-Rolling_and_Wake
1•red369•1h ago•0 comments

Why career breaks are good for you, your employer and co-workers

https://www.rte.ie/brainstorm/2025/0303/1499847-career-breaks-sabbaticals-advantages-benefits-employee-employer-co-workers/
3•austinallegro•1h ago•2 comments

I built an ethical evaluation engine for scoring sys. alignment, not efficiency

https://github.com/luminaAnonima/fabric-of-light/blob/main/appendix/alignment_engine.md
2•luminaAnonima•1h ago•1 comments
Open in hackernews

Ask HN: What are you working on? (May 2025)

97•david927•4h ago
What are you working on? Any new ideas that you're thinking about?

Comments

iamwil•4h ago
A reactive notebook with algebraic effects for building backend/AI-engineering pipelines.

Reactivity can update the state of the notebook automatically, so you don't have to keep track of which cells to execute again. Side effects are managed to make it easier to reason about while maintaining reactivity and ability to interact with the outside world.

axegon_•4h ago
Fully open source cinematography drone. Spoilers: I only started a few weeks ago and I've got a long way to go still. Currently prototyping the gimbal for more context and wasting a ton of PLA in the process.
cadr•1h ago
Neat! What makes a "cinematography" drone different than a generic drone?
sagering•4h ago
I am working on kel, a typed configuration and templating language both written and embeddable in rust: https://github.com/sagering/kel.

Feedback, suggestions or contributions are very welcome! :)

austin-cheney•4h ago
A PTY in JavaScript. XTERM.js is not pure JavaScript as it builds binaries to do this.
mgl•3h ago
Assembling my CPS5 underwater drone: https://www.cpsdrone.com/
oulipo•3h ago
I'm working on building a repairable and fireproof e-bike battery! Check it out at https://gouach.com
hardlianotion•3h ago
Cool - is it easy to tell which batteries have a problem when you need to replace some?
akkartik•3h ago
A programming environment where boxes and arrows and hyperlinks are pervasively available to source code.

https://akkartik.name/post/2025-03-08-devlog

https://merveilles.town/@akkartik/114547652849162554

sgammon•3h ago
Elide, a new polyglot runtime. https://elide.dev
theThree•3h ago
The fastest PostgreSQL Node driver written in TypeScript: https://github.com/stanNthe5/pgline
kacesensitive•3h ago
Dude those benchmarks are nice great job
mindcrime•3h ago
As far as what I'm focusing on this weekend:

1. Right now, working on standing up an MCP server in Java. Not using the Spring Boot support at the moment, but rather setting up embedded Tomcat and doing it the more "low level" way just for didactic purposes. I'm sure I'll use Spring Boot once I get deeper into all of this.

2. Plowing through the "AI Agents in Action" book. I'm just wrapping up the section on AutoGen and about to move into crew.ai stuff.

3. Reading a book on Software Product Line Engineering.

4. I have an older project that's Grails based that I let linger without any attention for a really long time. I'm working on updating it to run on the latest Grails and Java versions and also writing some automated smoke tests.

35mm•3h ago
Email newsletter tracking the latest VC rounds, built in Rust: https://gtmintel.com
clone1018•2h ago
Really like your web design!
jlaneve•2h ago
On the home page right now it links to the Slash funding announcement 4 days ago, but the description looks way off
AlbinoDrought•3h ago
Unifi Video was replaced by Unifi Protect some time in 2020. I wasn't sure how to self-host Protect, so I never migrated to it. I've recently reached a situation where some phones can no longer install the Unifi Video app. These phones are now relegated to using the rough-on-mobile UI. The Unifi Video web UI has also never worked well in Firefox for me.

In the past few months, I've finally started working on a basic replacement NVR that works for me: https://github.com/AlbinoDrought/creamy-nvr

Like many video projects, it's a glorified ffmpeg wrapper :)

patatman•3h ago
You might be interested in running Frigate NVR ( https://frigate.video/)

Replaced my Synology surveillance station since 2023, and has been running great. I also have a Google Coral for the image processing, but this is optional.

kacesensitive•3h ago
Thought it was goofy that I was still reading newsletters through my inbox. I really don't want to open my email unless I'm working. Anyways, some friends and I made Scrollz to fix that and also add some cool features to the newsletter reading experience. AI summaries, newsletter discovery, audio narrations, etc.

https://www.scrollz.co/

muhammadusman•3h ago
moving off of Ghost to an astro blog b/c I don't write often enough to justify a $110/year fee and I also found out there's no way to moderate spam comments.
euvin•3h ago
Inspired by MathAcademy, I'm developing:

1) a note-taking workflow in Obsidian (you take bite-sized notes about a topic, then connect "prerequisite" notes in Obsidian's canvas editor)

2) a tool that uploads each note and graph data to a database

3) a webapp that presents those notes algorithmically using spaced repetition. This enables you to allow others to "traverse" your note graph in a guided and self-paced manner.

You can add "challenge presets" to each note so that your mastery of each piece of knowledge can be tested with simple flashcards, multiple choice, free response, or some visual/actionable task to force active recall. An algorithm uses your success rate and spaced repetition data to introduce & drill more advanced notes into your long term memory.

Here's some more reading I was inspired by:

https://www.mathacademy.com/pedagogy

https://www.justinmath.com/individualized-spaced-repetition-...

Even if there are a lot of imperfections and flaws about this project (like the sheer difficulty of curating a good knowledge graph to begin with), I'm hoping to make my note-taking in Obsidian more structured and thorough, replace my Anki routine, and make any of my notes into an automated + algorithmic course. If someone has another similar project (combining note-taking with hierarchal, topological knowledge graphs with spaced repetition and testing all in one platform) I would love to hear more about your approaches. Quick shoutout to one person I've seen who is doing something similar: https://x.com/JeffreyBiles/status/1926639544666816774

suncemoje•3h ago
You think current AI could create such a knowledge graph? And use it?
acenturyandabit•3h ago
I'm building something similar in my free time! Please let me know how you go :)
ravroid•3h ago
I was getting tired of summarizing long articles & threads on HN/Reddit with ChatGPT so I made a simple little Chrome/Firefox extension to do it for me:

https://literead.ai

daza•3h ago
I’m currently setting up Hyprland—it’s my first experience with a tiling window manager.
nickpeterson•3h ago
Converting a 600GB database into a 1GB database through refactoring/normalization/compression.
axi0m•3h ago
Wow, nice optimization.
Oras•3h ago
Free Resume Builder

When I was looking for a job last summer, I got frustrated with the current resume builders on the market and decided to build one exactly how I wanted to use it.

- No signup, no login, and no payment.

- Suggest a professional summary (with highlighting) to match a job description [0].

- Preview as you go.

- ATS friendly templates.

- Find relevant jobs for my resume.

[0] Recruiters skim through resumes, and highlighting the keywords they look for has always helped me to get their attention, so I decided to implement this feature using AI.

https://resumeyay.com

ranuzz•3h ago
I'm building small web and mobile games. Always exploring new game ideas, happy to chat with others in game dev
AaronAPU•3h ago
Just released a “Loudness Contour” audio plugin. Let’s you apply various equal-loudness contours like Fletcher-Munson, ISO-226, LUFS style K-weighting, etc.

Fits into my “loudness series” suite of tools.

Have 3 more in development and then it’ll be on to the next series.

https://apu.software/contour/

shayanbahal•3h ago
Vibe coding a few apps I always felt humanity deserves (a bit exaggerated but kind of not :) )

- https://padsnap.app/ : PadSnap is a simple web app that adds customizable padding to your images so they fit Instagram’s/custom dimensions — no cropping, no quality loss. All on browser, no server uploads. Also no ads or login.

- https://shiryakhat.net/ : redid my podcasts website last week: Shir Ya Khat podcast, which translates to "Head or Tails" in Farsi, began its non-profit journey in 2016 with a mission to make blockchain and cryptocurrency technical knowledge accessible to Farsi speakers worldwide.

- life timetime visualizer, still WIP, feedback welcome: https://shayanb.github.io/timeline/

windowshopping•3h ago
A new site of daily puzzles, mostly word puzzles but also one numbers puzzle. Releasing soon!
tha00•3h ago
I'm working on a new secondary dominant exercise for my Jazz pratice app: https://jazzln.vercel.app/
NoTranslationL•3h ago
A few things:

Reflect - an app to track anything and analyze your data, including a feature to run self-guided experiments [0]

Later - an app to schedule non-urgent tasks and ideas, with an SRS-like scheduler to punt items [1]

[0] https://apps.apple.com/us/app/reflect-track-anything/id64638...

[1] https://apps.apple.com/us/app/later-set-intentions/id6742691...

murrion•3h ago
I’ve been experimenting with data formats like Parquet and Iceberg, and recently came across Lance. I wanted to try building something around it.

So I put together a simple Digital Asset Manager (DAM) where:

* Images are uploaded and vectorized using CLIP

* Vectors are stored in Lance format directly on Cloudflare R2

* Search is done via Lance, comparing natural language queries to image vectors

* The whole thing runs on Fly.io across three small FastAPI apps (upload, search, frontend)

No Postgres or Mongo. No AI, Just object storage and files.

You can try it here:

* https://metabare.com/

Or see the code here:

* https://github.com/gordonmurray/metabare.com

Would love feedback or ideas on where to take it next — I’m planning to add image tracking and store that usage data in Parquet or Iceberg on R2 as well.

nullderef•3h ago
I was building an intentionally annoying app against doomscrolling [1]. Being technical, I tried to focus on product, marketing and more instead of the implementation. But I still didn't ship quick enough. It's so hard. Only after a few months did I start with marketing, and it hit me like a wall.

So I'm giving a try to a project which started with marketing. No implementation, just a TikTok to see if people like it. And holy crap, we got 75k views!

The new idea [2] is easier to explain (1 pushup = 1 minute of scrolling) and already has a community. Plus, not working alone helps me focus on what I'm good at: programming. I don't regret learning about other areas but doing marketing for a living is not my thing.

I'm not getting rid of SpeedBump, though. It's a fun side project and it does help people :)

[1] https://speedbumpapp.com

[2] https://pushscroll.com

rgyams•3h ago
I'm working on MyPhotosGallery, an application that allows people to create photo galleries from their Google Photos. I've made it easy to onboard users and also priced it in Ghana Cedis so that it's cheaper for anyone. Currently there are templates for birthday, graduation, wedding and general photoshoot. https://myphotosgallery.com/
eqmvii•3h ago
AI agents and testing “vibe coding”

It doesn’t feel there yet, but starting to seem some workflows could be close. And non-technical folks at business are starting to pay attention and want projects moving in those areas.

flashblaze•3h ago
Currently working on InstaClock. Time tracking app for individuals. Do check it out: https://instaclock.app

I redesigned the home page today itself. Any feedback is appreciated!

herol3oy•3h ago
I'm working on Austen[0] which generates story relationship graphs with Mermaid

[0] https://github.com/herol3oy/austen

tunesmith•3h ago
I've been working on a calibration website / app.

Along the lines of predictionbook, metaculus - something that helps you be "well calibrated", but more playful/fun than metaculus.

It doesn't have a lot of upside - predictionbook actually went offline due to lack of interest. But it was a good excuse to try out some vibe coding, and learn react native (I've mostly been a backend programmer).

In an attempt to make it more engaging and fun, I decided to have it focus on sports picks. Also partly because calibration graphs need to have a lot of predictions to yield any reliable information about your calibration.

I got it up in time for March Madness and about 25 of my friends joined and it was a good time. I nagged and reminded them a lot about about 15-20 of them predicted all 63 games, by picking the winner of each match and what their percentage confidence was. I had a leaderboard and live-blogged and gave silly awards.

I later added support for multiple "tournaments" and currently have tournaments going for NBA Playoffs and NHL Playoffs, but interest is waning. Of my friends, only 2-3 others are still regularly predicting.

Maybe it'll be more fun for the NFL season but I might also let it go a bit dormant.

Biggest challenge is that there isn't really a bulletproof way to rank people if people only predict some games in a tournament. I've tried all sorts of things, minimum # of games, bayesian kernel smoothing, but it's ultimately arbitrary when choosing how to penalize someone for not participating.

If I were to continue I'd be looking at things like automatically integrating with sports apis and odds/bookmaking apis, allowing users to create their own tournaments, etc. But ultimately, the UX of the site isn't much more than making a prediction, and then checking back later when the game is over to see your score. Not much more reason to hang around on the site than that.

nico•3h ago
A CLI ai-powered job matcher and application tracker for finding tech/startups roles. Open source: https://github.com/nicobrenner/commandjobs

Also having fun one-shoting or few-shoting, little games and interactives:

* https://openjam.ai/stupid_coral_852/yj34um3hkq

* https://openjam.ai/lonely_ant_702/v3nyt4if54

ecce_homo•3h ago
Because I love building APIs and backend services, I built a simple IP geolocation service with the best developer experience. It has free (rate-limited) access and affordable paid tiers. Check it out: https://ip-sonar.com
anonu•3h ago
This is cool - how does IP geolocation work? How do you know that xyz IP is at this particular spot?

Edit: I see you are using MaxMind database - do you add some sort of additional analytics or overlay on top of that?

ecce_homo•2h ago
At this moment, I'm still very early with the service, I don't do any serious data crunching on my end (but I plan to).
anttiharju•3h ago
On https://github.com/anttiharju/vmatch as a hobby. It's starting to get to a workable state, I'm using it to manage Go and golangci-lint for the project itself. It even works with the Go vs code plugin.

I think many version managers make things unnecessarily difficult, especially if one hops from one repo to another. vmatch automatically uses and installs the right versions.

dmitshur•2h ago
The toolchain management added in Go 1.21 sounds related to this. Hopefully you’re already aware of it, but if not, see https://go.dev/blog/toolchain.
anttiharju•2h ago
It's a helpful link, thank you. I think I need to play with toolchain more. Last time I checked I think there was some corner case that was not covered but I could be wrong.
anfractuosity•3h ago
I'm working on 3D printing a lens mount and battery holder for Canon EF lenses to a night vision tube I've got (https://github.com/anfractuosity/darkplace).

As well as been playing with creating plastic keys using a flatbed scanner with the printer.

contingencies•3h ago
Fundraising.
runarberg•3h ago
I am restarting my free and open source SRS kanji learning app https://shodoku.app which is based on free and open source dictionary data and Anki’s FSRS algorithm.

What I have is a basic flash card app with double sided cards (for writing (i.e. drawing) the kanji, and reading). What sets it apart is that each card contains all the relevant dictionary data, and users are encourage to bookmark a couple of words to help them remember the writing or the reading of the kanji.

What I am working on now is the database backup/sync system. I store all the user’s progress in indexeddb store in their local browser. To sync I am writing a simple patch system, so they can pick a remote somewhere (e.g. a gist on github) and push their latest patches, when syncing progress I would check the hash of the patch and apply the relevant patches.

After that I am planning on turning it into a progressive web app so users can download the app onto their devises.

https://shodoku.app/

https://github.com/runarberg/shodoku

acenturyandabit•2h ago
Love the aesthetic! Also your handwriting input is super smooth, amazing!

I've been building something similar for Chinese, just for myself: https://hazel.daijin.dev/ It's got PWA, let me know if you want my presets for working with PWA with Vite.

Will definitely be taking a few pages out of your (app) when I get a chance!

hilti•3h ago
I‘m working on some scripts to make my Mac life a little easier:

1) Setup Apache https://github.com/marchildmann/IDS-Scripts

2) Setup MLX and MLX-LM Finished by tomorrow

3) Working on a micro PHP framework to instantly deploy an API, connect a database and have a basic middleware

mattbettinson•3h ago
I’m working on https://voicecast.app/ but struggling to get users. It’s a way for podcasts to get voice messages for their shows. Any advice appreciated!
gessha•2h ago
This sounds like a cool idea. What have you tried so far?
mattbettinson•42m ago
Reached out to some of my favs, got my favorite podcaster to sign! But past that cold email has been not super effective
0x000xca0xfe•2h ago
Looks like a cool idea but not immediately apparent how it works. E.g. there dont' seem to be voice messages visible when I go to the example?

Have you thought about using the landing page itself as a demo? I.e. to allow users to post voice messages on your main page. Would at least be intriguing.

mattbettinson•43m ago
Cool idea! Yeah, an example means the input page but I should make it more of the admin view!
zacharycohn•3h ago
https://www.moviemixup.com

A wordle-like game based on a road trip game my friends and I used to play. It serves you up a mashup of two different movie plots, and you have to guess the combined movie title. There's always some sort of shared word or wordplay between the two movie titles.

An example from the tutorial: the day after tomorrow never dies.

prmph•3h ago
Since I had so much trouble managing my entire digital information universe [1], I decided to scratch my itch and solve it for myself and maybe others as well. Here are my ideas about my product:

- Manages the entire range of personal (and maybe business) information/content: Documents, Media, Messages (email, instant, etc.), Contacts, Bookmarks, Calendar, etc.

- Is tag based, so that where to put and find content is easy to answer. Think of a set of flat folders, on one or more devices, within which the files are stored with tags attached. Since people often find navigating/browsing files more natural than searching, virtual folders will be dynamically generated to guide navigation. Also, entire folders can be treated as atomic, and tagged/managed as one object (useful for repositories & projects). And, heuristics (and maybe AI) will be used to automatically tag files when they are imported into the tool, greatly reducing the tedium of adding tags.

- Is file based, so that all information is physically stored as individual files. This allows information to be more easily managed on a physical level: moved around, backed up, exported/imported, searched, navigated, etc. So in addition to docs, each email/instant message, contact, scheduled task/event, bookmark, etc. would ultimately be stored as a file, unlocking all the things you can do with files.

- Has a local web-based UI launched from a local agent, so actual file content does not usually need to move across the network and stays local, and the tool is also easily multi-platform, with consistent UI irrespective of platform.

- Provides a cloud web UI as well, that communicates with content devices through the local agent, so that content stored across multiple devices can be managed in one central location, even without direct access to those devices, team/org features can be provided. However, file content still stays local, except when shared.

- Provides tools for exporting data as file from the data islands of various apps and service, and backing up as files to cloud storage services.

My vision is a situation where I am in charge of my own data irrespective of whatever device, app, or service I use, can ensure that it is always available and will not be lost, and that I can easily navigate and search through it all to find whatever I want, no matter how scattered and massive it is.

[1] Here are some of my issues with personal information management affordances of current tech, which is driving me to work on a solution:

- Our data is too bound to device and vendor islands. Can't easily move my information across Apple/Google/Whatsapp, etc accounts. Can't easily merge and de-duplicate either. I almost always somehow lose data whenever I have to move to a new phone, etc.

- Hard to own your data on many services: Discord, Slack, etc. Can't easily export, search.

- Hard to have a 360 overview and handle on all your data assets and query them in a consistent manner.

- Files as a unit of information storage and management is very ergonomic; we shouldn't allow that concept to be buried by vendors for their own gain.

benhoyt•3h ago
A program that will play chess (written in Go). My 18yo daughter can now beat me at chess (not that I'm any good). I figured if I can't beat her, I'll see if I can write a program to beat her instead. My idea for v1 is that I'd write the algorithm myself, without looking up anything about how to write a chess program (I'm sure such literature abounds). I've just about finished v1; still a few bugs to iron out. To be honest, I didn't find it all that fun, mainly because of all the special cases (all the castling rules and the like).
jkoff•2h ago
I can't help but point out the irony of a chess program written in Go, as someone that enjoys playing Go [1] myself. Sorry to hear it wasn't that fun, hope you still got something out of it!

[1] https://en.wikipedia.org/wiki/Go_(game)

benhoyt•2h ago
Yes, definitely still got/getting something out of it, thanks. And I'll probably get more out of it when I read up on "how to write a real chess program" for v2, and learn about all the things I didn't think about.
TZubiri•1h ago
Same, always wanted to do this, especially without looking stuff up, which feels like cheating. I haven't yet figured out the recursive tree search thing.
acidburnNSA•3h ago
I recently quit my salary job after 16 years and am consulting in nuclear engineering now. I have a few passion projects that I'm working on (between the somewhat substantial consulting work that came out of the woodwork):

- Nuclear Reactor Starter Kit --- an open source set of procedures, processes, templates, and maybe even some IT advice that should help newcomers start companies with nuclear quality assurance programs easily and quickly while also making a new format in which nuclear companies can share lessons learned in efficiency.

- Reactor Database --- similar to the iaeas PRIS but focused on reactor development rather than power reactors. Will include nuclear startup company tracking with details gleaned from statements and maybe extrapolated where necessary from simple simulations. Will include things like fuel cost and licensing progress. This way people can more easily separate vaporware from real nuclear, and keep track of promises vs delivery.

sureglymop•3h ago
Sounds very interesting! How did you get into this industry initially?
acidburnNSA•3h ago
I wanted to do energy stuff and happened to be at a college that had a nuclear engineering dept. The peer advisor told me to take a class in the dept and I loved it.
andrewfurey2003•3h ago
Is there a repo for the starter kit yet that I can bookmark?
acidburnNSA•3h ago
Not yet! Will probably show up in this org https://github.com/whatisnuclear
eftychis•2h ago
This is really really interesting. Do share any links, or do post about it here on hn.

Have fun!

ahd985•2h ago
Very nice! I ejected from the nuclear industry almost a decade ago and have played around in Healthcare/IoT/Oil&Gas/Finance software tech, but I'd love to figure out how to apply these skills to nuclear energy somehow.

Also - love whatisnuclear.com! About 10 years ago, I tried my hand at creating a generalized JS-based viz system (see examples in https://github.com/ahd985/ssv), but could never figure out a market/path forward for it.

pants2•3h ago
Check out Voibe: https://github.com/corlinp/voibe

Open source Mac-native menu bar app for speech to text using GPT-4o-transcribe (current STT SOTA)

Etheryte•2h ago
Whenever speech to text apps come up, I get curious how people use them in their workflow. I've tried to integrate it into my daily work a few times, but have found myself dropping it not too long after. If I'm already at a keyboard, I just don't seem to find any case where I don't prefer that as an input. What are other people using these for?
alexnastase•3h ago
I'm currently working on an online gallery platform for professional photographers: https://picstack.com
cryptoz•3h ago
The plan: You are a PM and Engineer - and so is the AI. You both write tickets and you both complete them to iterate on your code.

https://codeplusequalsai.com

You can build webapps very quickly, especially AI-enabled ones, and deploy them on a subdomain. Other users can sign up and use your webapp, and any tokens they use will be billed to them and you will get a large cut (80%) of the margin earned on the tokens billed - as I bill 2x OpenAI API token costs to create this margin.

So ideally you can validate your idea by rapidly building a prototype and evening earning revenue to boot.

sanswork•3h ago
I built https://startthelanding.com mostly for myself as I have needed it a lot over the past few years and always ended up building quick one offs. I'm now working on marketing it through a few different channels while at the same time starting work on my main project that I needed the landing pages for which is a fashion for tech/finance people site. I'm going to be doing a big social campaign for that one soon involving myself so I'm pretty excited but also quite scared since I'm not really the post myself on socials type.
1270018080•3h ago
I have a ton of spare time and wish I could write some kind of side project, but I simply have no good ideas. I already have everything I need.
piker•3h ago
https://tritium.legal

Tritium is an IDE for corporate lawyers. Draft Word docs, review PDFs, redline all in a single application. It's written in Rust using a modified version of egui. Immediate mode has some interesting tradeoffs that I'd love to discuss on here. Also the web/desktop dichotomy presents a lot of interesting opportunities and challenges where data governance is concerned. I'd love your thoughts or to share mine!

clone1018•2h ago
I'm not a customer, but having seen the workflows lawyers go through with documents this product would be extremely useful. I suspect your challenge will be that most laywers are likely risk averse, and would hesitate to put any important changes through something that is not well vetted. I wonder if there's a way to combat that by keeping your product compatible with their usual format, therefor making it a less risky product to try?
piker•2h ago
Great question - it aims for 100% compatibility with MS Word documents. It falls over on the rendering side, but guarantees not to drop data or miss any text. If you see it on your screen, someone using Word will see it too.

Getting it onto the desktop is the big challenge for the moment!

frainfreeze•2h ago
Now my lawyer will be using vscode too, sweet!
piker•2h ago
Hopefully it will save you some billable hours :)
recsv-heredoc•2h ago
Nice idea! Some possible really good reading here for you: https://substack.com/@jordanbryan - YC 2021 building out “git for lawyers”
piker•2h ago
Concur with most of that.
TZubiri•1h ago
What experience do you have in law?
piker•58m ago
I was a special counsel at a funds practice. I began practicing corporate law in 2011. Check it out here: https://tritium.legal/about
rorylaitila•3h ago
I've been collecting and digitizing vintage print advertisements and publishing them (https://adretro.com).

I have tens of thousands of ads in the collection and it would take me many lifetimes to complete, but I've been using AI to extract and catalog the meta data. I can get through about 100 ads/day this way.

One of my favorite ads, a computer from 1968 that "answers riddles": https://adretro.com/ads/1968-digi-comp-digi-comp-1-table-top...

cahoots8727•2h ago
That’s really cool.
eps•2h ago
Indeed it is!
rorylaitila•2h ago
Thank you!
ashwinsundar•2h ago
Is there a way to contribute? I have some old National Geographics I bought for 10 cents each a number of years ago. The old ads are one of my favorite things in every magazine.
rorylaitila•1h ago
Thanks for the offer! I need the physical magazines in hand to catalog, so if you want to part with them let me know. It can be a little pricey to ship a lot of paper but if you're up for it, my connect details are in my profile.
dghlsakjg•14m ago
If you’re in the US, make sure you have people ship using discounted media mail rates!
Yoric•3h ago
Graph algorithms running on existing quantum computers.
andoando•3h ago
I've been working on a drawing/animation library/language based on patterns and abstractions.

On one hand the idea seems so simple and intuitive (Define patterns (like 3 red blocks to the right), combine patterns ( 5 up * 3 red right), use patterns inside patterns (each block is a square), but implentation wise I keep running into so many intracies and I want it to be perfect so it's been kind of tough and slow.

clone1018•2h ago
Timely posting! I've been inspired by some recent... large gaps in data at work (silent analytics processing failures) to build a service called QueryCanary. It's a surprisingly powerful but simple tool that lets you define scheduled SQL checks to run against your database, and then checks those results for anomalies, variances, and other issues.

Really hoping to get some early feedback on this tool, I've been using it for two production sites for about a week now and I've already discovered (at work) that we've had the 2nd largest user signup day, and that we deployed a change that inaccurately tracked a specific metric. Check it out at https://querycanary.com

csnate•2h ago
https://pwnscan.com

A binary static analysis tool that identifies vulnerabilities.

Right now, still just focused on buffer overflows. It can find some known CVEs and I’ve made several reliability improvements over the past month or so.

I think I’m going to expand to additional vulnerability types soon.

plankers•2h ago
modeling the heat transfer modes in Enceladus' icy shell that rests above its liquid water ocean. previous modeling has assumed that all heat transfer is conductive, but using dynamical simulations i've shown that under certain conditions convection can occur at in the shell. specifically, these conditions are having a thick enough ice shell, the right amount of porous fluffy ice deposited from the plumes at Enceladus' south pole which jet water into space through fissures in the crust, and the right thermal conductivity of this porous layer.

now i'm starting on adjusting the model to include the liquid water ocean underneath the shell and observe the effect of changing viscosity gradients in the equilibration of the ocean and ice shell, as well as adding in compositional impurities (chloride brines) and tidal heating effects.

bishopsmother•2h ago
Expanding the functionality of Wabbit S2[0], e.g. Sesame AI[1], and improving existing features based on feedback over the last few weeks of Mabel's testing.

[0] https://blog.walledgarden.ai/2025-05-20/wabbit-s2-welcome-to...

[1] https://www.sesame.com/research/crossing_the_uncanny_valley_...

ramoz•2h ago
Context and “memory” (not really a fan of this term and how industry uses it) are actually complex to manage for power users including humans and agents.

While it may sound counterintuitive, the agents of today aren’t truly autonomous in that you need to really guide them and plan their actions well.

I believe this is true today, and will be even more true when agents are guiding agents.

We need new infrastructure for dynamic context management.

The answer is not as simple as “hook up your agent to an MCP that pull docs from the web” … also MCP needs its own revolution. I tend to use no MCP and prefer raw agent performance.

I’m evolving the simple concepts I built in my VS Code extension to address this. Nothing public now, but I and a few others use this everyday to feed parts of large codebases into Gemini (to build plans for Claude code, other coding agents): https://github.com/backnotprop/prompt-tower

xandrius•2h ago
Started working on a geo-location game about birdwatching. Imagine Pokémon GO but for taking photos and audio recordings of birds around the world.

Planning to have a first testing session some time next month. Really excited but still lots to go!

wcedmisten•2h ago
That's awesome! I recently picked up bird photography as a hobby and have contributed a few pictures to wiki commons.

Do you have a website I can follow?

RobinL•2h ago
I've been experimenting with whether I can use LLMs to produce interactive maths explainers for kids. There are a few examples here: https://rupertlinacre.com/

Unless I'm missing something, it's amazing how few free, _high quality_ materials are online.

Ultimately I'm interested in two things: genuinely fun games that make you do some maths, and quality visualisations that help make concepts easier to learn

wcedmisten•2h ago
I got tired of trying to pick a date spot with my girlfriend, so I made this website to randomly pick an restaurant/date activity for me based on OpenStreetMap data.

I've also used the data corrections submitted by users to contribute over 3,000 edits back into OSM!

https://surprisedatespot.com/

lunarcave•2h ago
ParseLM: https://github.com/parselm/parselm

It's a Typescript library that allows you to wrangle structured outputs from LLMs and pipe them to programmatically useful control flow or structured data.

pabna•2h ago
I'm working on a data-visualization blog. Hoping it will lead to some cool projects / apps.
qu0b•2h ago
We’re building conversational product discovery tools for e-commerce stores, moving beyond the limitations of traditional search bars. Our system lets shoppers explore and find products naturally—using their own words. We’re about to launch with our second customer, and early results show a faster, more intuitive, and more convenient shopping experience. For our retail customer we've had users just copy and paste their complete shopping list and be done within one conversation turn. https://www.isartech.io/
dennis16384•2h ago
I'm still working on Routing24 https://routing24.com - free route optimization and planning app without stops or vehicles limit.

It's been 6 month since our first appearance on Show HN [1], and I'm working with first free users on bugs, improved workflows and UX, geocoding, solver features, future mobile app etc. etc.

We officially crossed the limits of 1500 stops per optimization with some waste collection guys, all still running fully client-side in the browser.

[1] https://news.ycombinator.com/item?id=41995427

tiondo•2h ago
I'm working on https://greatriftsafari.com — a travel planning platform that uses AI + local expertise to help people design and book personalized safaris in Kenya.

Most safari booking sites are either outdated, opaque on pricing, or offer one-size-fits-all tours. We let travelers customize everything — dates, interests (e.g. big cats, birding, photography), travel style, and budget — and generate a full itinerary with lodge picks, activity suggestions, and accurate cost estimates (including seasonal pricing and transportation).

We also partnered with local operators so users can actually book what they see — not just get ideas. The goal is to make safaris more accessible and planning less overwhelming.

Still early, but if you're curious or planning a trip to Africa, I'd love feedback: https://greatriftsafari.com

henning•2h ago
My stenography app is stable enough that I can actually use it to learn stenography with it.
Zaloog•2h ago
Working on a pytest plugin with a tui to run tests interactively and manage plugins and options
frainfreeze•2h ago
A hybrid between forum and (headless) CMS, with customer support tools built in, so people can build websites that are kinda like posthog.com without having to patch everything together from scratch (and instead focus on their actual product AND not lose their community content in slack/discord/whatever).

Checkout how posthog did it [1], it's an interesting approach. Having something that can support both devs and content folks (non technical) is great. It is easy to get bogged down in building the website and reinventing bunch of wheeels, instead of focusing on the product & content, esp in smaller teams.

[1] How PostHog built a community forum, roadmap and changelog on Strapi https://strapi.io/user-stories/posthog

bbx•2h ago
A tiny numbers mobile game, playable on Android, iOS, and the web.
umvi•2h ago
I'm working on a programming game called "Pragma Twice". As in, playing the game involves programming. I just put up a steam page for it (https://store.steampowered.com/app/3528840/Pragma_Twice/) and have a demo submitted to Valve for review (which should hopefully be approved any day now, since I'm trying to participate in June's NextFest)

This game was originally inspired by the game "Untrusted" (https://github.com/AlexNisnevich/untrusted)

acenturyandabit•2h ago
This gives me exapunks / Zachtronics vibes
bruno_rzn•2h ago
I’m working on Karl [https://www.veloursdevices.com], a MIDI controller. It’s quite unique because it features 32 encoders over a display, which allows you to have a fully customizable interface—like a touchscreen, but with actual knobs you can touch.

I have a software engineering background, and I’ve been working on this for nearly 3 years now! I used to play with the Electra One controller before, but having the encoders over the display is really something I’ve always wanted.

I presented Karl last month at Superbooth (a fair in Berlin) and got really good feedback. After 6 months of beta and 2 years of touring with it myself, the first batch will be dispatched in August, and this is quite exciting!

Zamaamiro•2h ago
I’m working on a research cybersecurity tool that attempts to combine the natural language understanding and information synthesis strengths of LLM-driven agents with symbolic logic and knowledge bases expressed as Datalog programs for determinism and declarative semantics.

The approach is to perform system scanning using a combination of LLMs and traditional algorithms to dynamically populate a Datalog knowledge base. The facts of the program are constrained to a predefined “model schema” of sorts and a predefined set of rules that encode specialized domain knowledge of how new facts can be derived from known facts.

We generate proof trees / attack graphs from the knowledge base and queries posed to it. The attack graph uses big-step semantics to plan and guide the execution flow, and the system dispatches to agents with tool use to fill in the details and implement the small-step semantics, so to speak. This may include API calls to a Metasploit Framework server or RAG over vulnerability and exploit databases.

We use Pydantic AI to constrain the LLM output to predefined schemas at each step, with a dash of fuzzy string matching and processing to enforce canonicalization of, e.g., software names and other entities.

Tl;dr: neurosymbolic AI research tool for cybersecurity analysis and pentesting.

l72•2h ago
I am working on a music recommendation algorithm for your self hosted music. Think of it like your personal pandora.

Backend is already working: Boldaric https://github.com/line72/boldaric

And a simple iOS native front end (which I haven’t submitted to the App Store yet). Tor Jolan https://github.com/line72/torjolan

It has been interesting tweaking the algorithms and models for various similarity searches.

I really like that it focuses on music characteristics and not metadata, so popularity of a song/artist isn’t even taken into account. This has really helped me explore my rather large music collection especially when I get stuck in a rut of listening to the same things.

ata_aman•2h ago
Dora: https://dorafiles.com

It's a file explorer where it embeds your local file structure so you can use natural language to search your file system.

Started off as a local inference/vector-db only project last year and now also using cloud inference/vector-dbs for faster processing.

You can also use "agent-mode" to organize your files/folders, create items, move, copy and save content to disk directly from chat.

jaronilan•2h ago
Finished my 4th short story. This one is about Life Expectancy. I wrote it after reading something on HN.

https://github.com/jaronilan/stories/blob/main/Base%20Rate.p...

Will now move at the usual snail pace to write the next one.

nhatcher•2h ago
I'm redoubling work on IronCalc (https://www.ironcalc.com), a spreadsheet engine. Actually considering going full time on what it begun as a side project.
adhamsalama•2h ago
I'm writing an easy to use APM platform in a single executable (plus the database).

I tried self-hosting Sentry recently and found out there are a lot of moving parts, which makes sense for their scale and use case.

I was wondering if I could build something small and not multi-tenant. So I started experimenting with writing a server (in Go) that collects OpenTelemetry data and inserts into Clickhouse, an API for retrieving data/statistics (P95 in a time range, etc...), and a frontend (React.js) that displays them. All of this in a single executable file (yes, including the frontend, but not including Clickhouse).

This is all very new to me so I'm learning Go, Clickhouse and OpenTelemetry at the same time.

https://github.com/adhamsalama/nabatshy

aantix•2h ago
A new YouTube app/player, for my kids.

It allows us to control the algorithm. It’s all LLM translating to YouTube search queries under the hood.

Visually it looks the same. The suggested videos come from predefined buckets on topics they love.

E.g. 33% fun math, 33% DIY engineering, 33% creative activities.

Video recommendations that have a banned word in the title/desc don't get displayed e.g. MrBeast, anything with Minecraft in it, never gets surfaced.

For anyone interested in using it, send me an email.

I'll put you on my list. And you can contribute ideas to our community Google Doc.

jim.jones1@gmail.com

nlh•1h ago
Love this. As a new(ish) dad to a 16-month-old little girl, we're not in the YouTube vortex yet, but I know it's inevitable. When it comes time, I want to balance "she can watch and learn stuff" against my general sentiment against screen time / devices (which we've been pretty good at so far).

Anyway, a long way of saying awesome - would love to be on your list. I'll send you an email separately.

jimmcslim•43m ago
This is a fantastic idea. Do you end up playing whackamole with YouTube’s URL scheme?
kemyd•2h ago
https://shuffle.dev

For the last few weeks, we have been working on catching up on features for vibe coders (prompt -> project), but now we are back to our strengths (visual editor and new beautiful UI libraries for Tailwind CSS, Bootstrap, and more).

We realized there are just too many apps for vibe coders, and it would be better to work on something unique that we are really good at!

mingodad•2h ago
I'm collecting a collection of PEG grammars here https://mingodad.github.io/cpp-peglib and Yacc/Lex grammars here https://mingodad.github.io/parsertl-playground/playground both are wasm based playgrounds to test/develop/debug grammars.

The idea is to improve the tooling to work with grammars, for example generating railroad diagrams, source, stats, state machines, traces, ...

On both of then select one grammar from "Examples" then click "Parse" to see a parse tree or ast for the content in "Input source", then edit the grammar/input to test new ideas.

There is also https://mingodad.github.io/plgh/json2ebnf.html to generate EBNF for railroad diagram generation form tree-sitter grammars.

Any feedback, contribution is welcome !

calebkaiser•2h ago
This is awesome! I've recently begun diving deeper into working with grammars, using them as part of a new project, and these tools look super useful.
ryansworks•2h ago
Testing the limits of vibe coding. Created a programming language 100% via prompting a o4-mini-high, but did carefully review the code. https://github.com/ryanmcdermott/spress
lukan•2h ago
Sounds interesting. How much manual labour you had to do? Or was the code completely vibe coded and not edited?
ryansworks•2h ago
It took about 10 hours. Arguably would have taken me 100 to do it manually but likely would have fewer bugs, there’s a few I’m aware of, but I bet there are many.

I started with a basic syntax for expressions and specified a lot up front such as it being a bytecode interpreter and using a recursive descent parser.

I found building it up feature by feature to be much more effective than one shotting an entire feature rich language. Still there was a lot of back and forth.

sisve•1h ago
Really cool!

Only 1 commit :/ Would love to see the prompts and how you iterated on this

ryansworks•56m ago
Great point. I regret not being more systematic about this. I have tried on most popular models since gpt 3.5 launched, but it’s all been very ad hoc with the same general approach of building up a language feature by feature.
leslielurker•2h ago
I’m working on https://lurkhub.com a web app that lets me store my bookmarks, articles to read later and rss feeds in a private GitHub repo.
tallytarik•2h ago
Working on expanding https://iplocate.io - an IP geolocation and threat data service I've worked on since 2017.

I've found it really satisfying to solve the data challenges that come along the way, from "where on earth could this data come from" to collecting, storing, parsing, validating and serving constantly. It's also - by nature - something that's never going to be "done". There's always something to improve. I love it!

We now offer more types of data (ASN/whois, proxy/threat detection, so on) than most other providers, more accurate and more frequently updated, at a tenth of the cost, which is something I'm really happy about.

For anyone interested, you can make 1,000 requests day free, or reach out if you have an open source/public interest project for an unlimited key or access to the data.

I'd also love to hear any suggestions for additional data types to add.

codr7•2h ago
Currently taking a break from my C book to iterate my Lisp dialect in Go.

https://github.com/codr7/hacktical-c

https://github.com/codr7/eli-go

simquat•2h ago
I'm working on https://blueprintapp.design an app to simplify the creation of user flows.
yoav•2h ago
I’m building Electrobun (https://github.com/blackboardsh/electrobun)

It’s an alternative to Electron/Tauri that uses Bun.

It has a bsdiff based update mechanism that lets you ship updates as small as 4KB, a custom zstd self extractor that makes your app bundle as small as 12MB, and more.

I’m currently working on adding Windows and Linux support.

TOGoS•2h ago
Ostensibly, making French cleats to put on the walls around my house to hang all my computers (and other stuff) on.

In practice, writing journal entries about why I can't seem to get myself to make all these French cleats that I supposedly need.

Also some software stuff.

elpakal•2h ago
iOS app size analysis tool that runs locally on your Mac https://dotipa.app/
transformi•2h ago
Create alternative self-made feed of videos using VEO3 based on my intercation in social media.
dalemhurley•2h ago
I am working on a platform to improve product management and communication between the product team and engineers at https://Full.CX - got a few paying customers. Would love and welcome any feedback or suggestions.
burgerquizz•2h ago
I'm working on an AI web game generator for businesses. I spent a year developing our custom game engine to build a few games that didn't work, but I made the game engine to have reusable modules we can reuse for creating new games quickly . Now I've pivoted to allow anyone (business especially) to create new games on the fly.

here the games result so far: https://playcraft.fun

tehlike•2h ago
On and off building https://pricetracker.wtf
ginkgotree•2h ago
Counter-drone defense tech https://orcrist.us
Alex-Programs•1h ago
That's a really cool idea.

I'm curious, why electric motors vs a solid rocket motor? Volatility? Control over thrust? Making it safe to throw without worrying about backblast?

ginkgotree•44m ago
All of the above. Thrust vectoring, throttleable, hand launchable. Yes, yes, and yes, and a few more covert reasons
mikeytown2•2h ago
https://github.com/mikecarper/meshfirmware

CLI Meshtastic flasher that works well. No internet mesh networking sounds awesome; just the bandwidth is extremely limited

cadr•1h ago
Neat! Question - how have you used Meshtastic so far? It sounds cool, but the use cases people always bring up seem a bit forced.
hemmert•2h ago
I‘m writing a visual travel guide for the edge of the humanly thinkable:

https://www.unthinkable.net

(I made a small newsletter sign-up form, feel free to join the wait list for betas and a free e-Book!)

thom•2h ago
I am creating a heavily LLM-oriented distribution of Emacs (with a lot of the heavy lifting done by Karthink's gptel). This is primarily me rebooting my .emacs.d for the LLM age, but I've come to think that Emacs is a far, far more interesting place than VSCode as the basis for an AI coding environment: a text-first, eval-enabled, constantly self-improving IDE.
0x000xca0xfe•2h ago
I just finished my useless Brainfuck compiler ( https://news.ycombinator.com/item?id=44087363 ) and was thinking of a more novel application that hasn't been done already, like going the other direction and turning RISC-V assembly back to Brainfuck code. Currently trying to get MD5 work...

Also another fun idea I want to try is to let the Claude design a new programming language, i.e. where the AI makes all the decisions and goal-settings and I just help it instead when it's stuck.

ChicagoDave•2h ago
I have several projects in the works:

- mach9poker.com: incorporated startup developing a poker tournament training app for novices and unprofitable players. Looking for UX/product designer co-founder.

- policyimpact.org: A journalism site for highly vetted articles responding to actions of the current U.S. administration and other import political vectors.

- sharpee: a new interactive fiction platform built in Typescript

- bsky.poker: root domain for poker community to have nice handles on BlueSky

Happy if anyone wants to pitch into any of these projects.

tomek_zemla•2h ago
A modern take on ESL (English as a Second Language) vocabulary building flashcards. It might also be fun for native speakers who like language games. It is in beta and feedback is very welcome - iterating to improve it... https://www.dictionarygames.io
gagik_co•2h ago
Continuing my 2+ year project of building a texting-based productivity app. Started as a way to get a grip on Flutter and local-first sync for mobile, ended up being my by far longest running commitment. Still really enjoying it.

https://tetrify.com/

smeej•2h ago
I'm just trying to get my ideal PKM collection system working the way I've always wished it would. It involves trying to coax an LLM into writing code for me when I'm not a developer myself, so that's been an adventure.

All I really want to do is be able to clip/save articles (and maybe generate transcripts from videos) from my phone or computer, read them in KOReader on a Boox tablet, and then export them and my eBook notes into Logseq, but every time I think I have it figured out, some project pulls a rug out from under me and I end up back at the drawing board.

quintes•2h ago
I’m working on these in the wee hours

* prfrmHQ SaaS The modern way to manage performance reviews, set clear objectives, and ensure alignment across teams or individually — all in one place

https://prfrmhq.com

see https://news.ycombinator.com/item?id=43538744 [Show HN: My SaaS for performance reviews setting goals and driving success] https://youtu.be/ygvKdgiKRj4?si=Q9ael-oCLEGKMIgN - Shows I can use AI and I've integrated into AWS Bedrock

- Shows I can integrate with Stripe for payments

* Consulting (Architecture, Strategy, Technology leadership and advisory) - I'm working on getting my consultancy started. If anyone wants the kind of skills I offer here let’s talk https://architectfwd.com

* Next SaaS - Starting a SaaS for managing core strategy and technology concepts.

jkoff•2h ago
Link: https://infinitepod.app/

I'm building Infinite Pod, a web app that generates language learning podcasts tuned to your individual learning goals and level.

It's based on the principle of language acquisition through comprehensible input, as described here: https://www.youtube.com/watch?v=NiTsduRreug

It's still a bit rough, but feels magical in my own testing so I wanted to make it available to others.

benstigsen•2h ago
I am building a webserver using Luau[1] and Lune[2], which will be used to host my own website. I haven't been this excited in a long time, when it comes to trying out a new programming language. Luau seems to make Lua _perfect_ (except for the classic 1 based indexing). And with Lune it also includes a very simple way to serve requests, which has always been a headache to do with regular Lua in a cross-platform way.

I am hoping this will be the way in which I write most of my future scripts and projects.

[1]: https://luau.org/

[2]: https://lune-org.github.io/docs

lukehollis•2h ago
Text to 3d simulation on a map. It does historical or fictitious events pretty well if it's interesting: https://mused.com/map/

I was working on world models / generative environments but without the training data available as an independent researcher, ended up focusing on building with existing geospatial data.

The same architecture of the '24 Genie paper's dynamics model is instead trained on historical data for risk analysis and creating a heatmap in the 2d map. I'll try to adapt this for a more generalizable urban mobility model as well.

ml-•2h ago
Love these threads..

Decided to do an extended sabbatical after being part of one of the many tech layoffs the last years, and I'm thus working on things I like, instead of things that pay..

Collecting and cataloging craft beer venues from around the world, at https://wheretodrink.beer Still a WIP, and it's not trying to be the most extensive list, but I want it to be a substantial list. Once I reach a certain maturity in the data I'll probably look to spawn minor projects off from the data set.. have a couple ideas already that I'll just keep to my self for now :D

I also had a set of left over domains relating to beer that I'm offering up for use with BlueSky handles, and beer related link pages at https://drnk.beer - a bit on the back burner.

leansensei•2h ago
I've been working on a kinda-sequel to my first technical book, Northwind Elixir Traders. This one (Phoenix Product Codex) is about developing and deploying a production-grade REST API with Elixir and Phoenix.
ubavic•1h ago
I am reverse-engineering a PKCS#11 module for Gemalto smart cards and re-implementing it in Zig (https://github.com/ubavic/srb-id-pkcs11). The original module is published only for Windows, and my implementation targets *nix platforms. This is my first project in Zig, and I am very happy with the language.
recsv-heredoc•1h ago
For the past almost 3 years - full-stack vertically integrated business AI systems. We got a nearly perfectly timed start on this.

We’re solving the problem of “How can agentic AI interface with legacy and existing business systems.” - if you’ve got a boring job and are tired of filling out forms in business software or swapping between 10 different systems, convince management to let us come and have AI do it for you.

https://mindfront.ai

lihaoyi•1h ago
Working on my Mill build tool, aiming to bring a modern developer experience to the JVM ecosystem:

- https://mill-build.org

Build tools are generally an un-sexy field, and JVM build tools perhaps doubly so. But Mill demonstrates that with some thought put into the design and architecture, we can speed up JVM development workflows by 3-6x over traditional JVM tools like Maven or Gradle, and make it subjectively much easier to navigate in IDEs and extend with custom logic.

If you're passionate about developer experience and work on the JVM, I encourage you to give Mill a try!

quadrature•1h ago
Is mill ready to be used in production ?
lihaoyi•1h ago
There are some companies out there using it in production. I know Netflix and Disney have some teams using it, and the Chisel project (and associated SciFive company) recently moved completely onto Mill from SBT. They all seem pretty happy
6stringmerc•1h ago
Currently developing templates and resources for a consulting business to enhance B2B and B2G contracting process - specifically selling against AI in the same space. The English language used for business is nuanced and must have factual basis, especially in Procurement and Contracting in the US, and clients therefore cannot afford to trust AI content. As such my platform and service connecting SBEs with skilled, knowledgeable Humans will provide a solid ROI.

A totally bootstrapped, professional services undertaking with no investors needed. The value is in the knowledge acquired over a decade plus in sales support roles and learning about an underserved, viable market.

ayaros•1h ago
A web os; it's full recreation of the Lisa Office System GUI in Javascript. The entire thing is output to a single canvas element, which has forced me to write a number of the UI components from scratch that I'd normally take for granted. It's got an IndexedDB filesystem, and it's got apps. I'm almost done working on the first real app for it - a word processor akin to LisaWrite. Once I roll that out, I intend to do a ShowHN post.
jsemrau•1h ago
I still haven't found what an actual working product in AI Agents could be and write about my journey into capabilities, frameworks, and restrictions here: https://jdsemrau.substack.com/

Initially I thought there is a use-case in finance, but the barriers of entry are incredibly small and the value add is not that large.

Currently, there seems to be a lot of traction in code generation (Cursor, Lovable, et al), but I have not seen that work on a useable code base/workflow.

recsv-heredoc•1h ago
From our observations on why - you need to have an extremely tight validation loop on everything you do for AI agents to be useful. They also need a ton of highly specific instructions and context. This requires a deep understanding of the platforms and tooling or a highly standard way of working (coding).

This is why tools like cursor work so great, they’re able to work in a super tight feedback loop with the compiler, linter and tests. They operate in a super well-known, documented environment.

If we can replicate the same thing on business systems… that’s when the magic happens - just very hard to do without deep knowledge of those platforms and agentic AI because everyone does stuff differently in each org. The overlap of people with skills in both AI and specific business ops areas is absolutely tiny.

An example of where we’re using this is in a fully AI native CRM (part of SynthGrid - see https://mindfront.ai). We don’t even have any way to interface with it outside of AI, but we’d also never want to do so again anyway because the efficiency gains are so huge for us.

The Pareto frontier will continue to inexorably advance forward, dragging even the complex or non-standardized domains in with it. For those tightly integrated business systems, we’ll probably see huge gain in utility, if not function, from the improved underlying models combined with the excellent tools. Be sure to try out Claude 4 Opus hooked into some systems if you haven’t already!

jsemrau•13m ago
The tighter the scope/validation loop, the closer the "agent" gets to a more narrow business case of machine learning. These more traditional cases are in comparison significantly cheaper to implement and maintain. If you consider as an example traditional scorecards+policy rules in credit underwriting vs an agent that "reasons" over the loan application context.
trikko•1h ago
Yesterday I released version 0.7.17 of Serverino, my HTTP server written in D

Serverino is a small, fast, and dependency-free HTTP server implemented in D. A minimal app with serverino can handle on my laptop ~150k reqs/s and it uses just a few mb of ram.

https://github.com/trikko/serverino

dhuan_•1h ago
I've been working on mock: https://dhuan.github.io/mock/

the process of creating APIs for testing and automation should be as easy possible. the tools that exist nowadays aren't good enough, they require you to use their programming language of choice or complex procedures for a task that should be simple. I built mock to try to solve that and still continue to maintain it.

marginalia_nu•1h ago
I'm working on a chrome extension for use in a headless browser in marginalia search to capture information about network traffic, ads, and popovers when visiting a website, to better identify nuisance websites.

A bit of a janky setup, but I've mostly gotten it to do what I want it to do after some head scratching.

archiepeach•1h ago
My collection of art, philosophy and poetry apps. They have previously just been on iOS but I just finished the Kotlin port of the art one, so will be releasing that soon.

The poetry one is react native. Art and philosophy ones are swift/kotlin. I wanted to see if you could use LLMs to effectively create a cross-platform app. The idea behind react native was that you write it once in an approachable language, then the framework compiles to native app code. In 2025, the approachable language you code in is English, and the LLM now generates native app code.

It was generally a success and I feel less of a need of the development overhead of react native these days.

https://apps.apple.com/gb/app/for-arts-sake/id6744744230

https://apps.apple.com/gb/app/daily-philosophy/id6472272901

https://apps.apple.com/gb/app/the-poetry-corner/id1602552624

cadr•1h ago
I'm building an amateur radio SSB transceiver for the 20 meter band.
semessier•1h ago
legal tech apps via AI
gudzpoz•1h ago
An "JIT interpreter" for Emacs Lisp [1] with Graal Truffle [2] in Java. And it is really amazing how the frameworks these days simplify building a JIT runtime for a language. Currently I'm working on a pdump[3]-like feature for it.

[1] https://codeberg.org/gudzpoz/Juicemacs/src/branch/main/elisp

[2] https://www.graalvm.org/latest/graalvm-as-a-platform/languag...

[3] https://www.gnu.org/software/emacs/manual/html_node/elisp/Bu...

jobswithgptcom•1h ago
https://diffwithgpt.com is a tool that summarizes GitHub diffs using a locally hosted Qwen/Qwen-8B model. It currently indexes a small set of Go/devops repositories and enriches commits with AST derived context to improve semantic accuracy.(only past 3y of commits for now) The goal is to evaluate whether lightweight, local LLMs can provide meaningful changelog summaries. Any feedback welcome.
siliconc0w•1h ago
AI app generator that also generates the backend, a database schema, and auth. Mostly a test bed for different workflows and to see how good the SoTA models are.
catchmeifyoucan•1h ago
I've been working on an e-ink laptop. I wanted a machine I could open and start working immediately. Also one I could stare hours at and feel okay about it. I didn't seem to find a device like that out there. I'm designing everything from the chassis to the software OS. E-ink has it's own design constraints. I'm building 5 apps for it: a browser, reader, mail, writer and code editor. It's still a ways to go. Here's a picture of what I have so far:

https://www.heyraviteja.com/kitiki.png

999900000999•1h ago
Depending on what your goals are just adding a Bluetooth keyboard to an Android E Reader gets you 90% of the way there.

https://shop.boox.com/products/go103

I dabbled in hardware and I quickly found you need millions to do anything.

However, this definitely is a market waiting for a product. I’d lean towards looking if you can add a custom screen to the framework laptop.

That’ll be much cheaper to build and easier. I reckon you’d only need a custom Linux driver for the screen.

3abiton•45m ago
My main gripe with boox is their closed source bloated firmware and no ability to unlock the bootloader.
catchmeifyoucan•41m ago
Thanks for sharing! Agree, building hardware hasn't been the easiest thing.

Interesting, I like the idea of a custom screen on the Framework. I'm sure that may come with its own challenges as well :)

cheschire•46m ago
hey maybe the kid that made the anyon_e would be inspiring for you!

Here's a couple related videos:

https://www.youtube.com/watch?v=fks3PBodyiE

https://www.youtube.com/watch?v=A0sLQvuLwxQ

catchmeifyoucan•36m ago
Huge inspiration! I loved the anyon_e videos. He DIY'ed the laptop and made it look really nice.
seanwilson•1h ago
A tool for creating custom/branded palettes that have accessible WCAG contrast by design:

https://www.inclusivecolors.com/

No AI or autogeneration stuff, more like an advanced editor that lets you tweak large sets of colors to your liking and test they pass contrast checks in advance before you start using them in your UI/designs.

harisund1990•1h ago
YugabyteDB a distributed postgres database.

Think of it as a true drop in replacement for postgres that runs on multiple nodes. It internally does replication, sharding and leader election. Just add more nodes and you get to increase both read and write scale.

I personally am working on a few things like online major upgrades, async replication for DR, enhanced backup/restore/pitr/clone capabilities, and more recently supporting DocumentDB extension which provides a true Mongodb API.

Being a startup I also get to talk with large customers, help with marketing content, and participate in database conferences.

nlh•1h ago
I'm a tech guy turned rare coin & currency dealer -- this is my world:

https://rarity7.com

The retail site is 100% custom code built in Crystal (server) and Svelte (client). The only part that isn't running my own code is our checkout flow -- I let Shopify handle everything after "Add to Cart".

Our system backend is a separate Crystal app which handles inventory management, pricing research, and price prediction. I've developed an ML model to do price prediction and it kinda works?

What I'm actually working on: This is my full-time gig and probably 60% of my time is spent running the business (going to coin shows, buying coins, photographing new purchases, etc.) and 40% is spent writing code to make the 60% run more efficiently :). It seems I have an infinite list of things to do -- improvements to our retail site; Improvements in how to efficiently go from coin to retail listing (turns out you can send just photos of coins to Claude and with the right prompt it will actually give you a reasonably good description that doesn't sound toooooo AI slop-y); Next "big" project is adapting our ML model for paper currency. The taxonomy is similar but not the same and there's a whole world of notes out there that need to be priced.

Always happy to talk about this stuff so always feel free to email with any numismatic (or tech-numismatic) questions. noah@rarity7.com.

nazcan•1h ago
For those in Canada, I've been working on SnapEntry - which automates entry into apartment buildings with one time use codes.

I got tired of missing deliveries, so now software answers the buzzer.

Using a mix of telephony, transcriptions, and websockets. Webserver is in C++.

https://snapentry.ca

weakfish•1h ago
https://github.com/weakphish/yapper

A block-based TUI note/task application using the Charm tools. I know there’s a billion note apps out there, but none fit my mental model, so just hacking my own.

Goal is to have a system of dumping info in and letting organization naturally rise from tagging.

Each tag has its own page that aggregates all blocks tagged with it, and can have a custom page layout depending on the defined “type” of the tag I.e. a person, project, etc.

Tasks are also first class citizens and can be aggregated with dependencies on other tasks.

nozmoking•1h ago
A proof-of-work based imageboard; as you navigate through different threads and mouseover certain images and such it mines on them. Threads are sorted and bumped based on PoW.
coro_1•1h ago
A web UI that enables collecting of the dollar amount of the local major utility providers monthly bills (Before engineering I worked in marketing research). I am concerned about the data collecting part, not because the local consumers don't seem okay too provide it (there's outrage) but because I'm not working and don't feel confident in publishing anything live. State government only publishes the annual yearly rates. There's no transparency on the rest.
kelsey98765431•1h ago
i lead our ai products team at io.net, come get some free credits (1m tokens per model per day). contact us if you like the service, our api is openai compatible and we have deepseek, qwen3, and llama 4 maverick along with lots of other neat models. hope to have more cool stuff out by the end of the quarter, thanks.
Alex-Programs•1h ago
I'm working on https://nuenki.app. It's a browser extension that translates sentences at your knowledge level into the language you're learning, so you learn through immersion as you go about your day.

I've been doing a lot of experiments evaluating LLM translation performance, and I used what I learnt (that LLMs make mistakes, but different LLMs make different mistakes, and they're better at critiquing translations than producing them) to make a hybrid translator (https://nuenki.app/translator) that beats everything else.

And I was invited to do a talk about that to a company, which was really cool! I'm 19, doing this in my gap year before uni.

sp1982•1h ago
Working on https://jobswithgpt.com to solve my own frustration with job search. Indexes only jobs posted directly by companies (on their own sites or ATS). Offers simple features like saving jobs, reviewing resume against job listing using openai.
brynet•1h ago
Making rent this month so I can unslack.. help appreciated. :-)

https://brynet.ca/wallofpizza.html

But seriously, I'm looking for "no-strings" sponsors, if any companies (or individuals) would like to help support me so that I can focus on open source full time. Feel free to email me: https://brynet.ca/

litemn•1h ago
Started a small Kotlin project - an llm-based assertion library, to verify the response from another LLM, check images or, actually, anything https://github.com/Litemn/llm-assert
tmilard•1h ago
Working on a 3D-Editor that transforms photos of a place into an FPS game. - Editor : https://www.youtube.com/watch?v=LEsqp93sq3w - FPS Example : https://free-visit.net/fr/demo01

This has been my WE project for a long time. But it's only working really now.

kegs_•1h ago
2 hours in and this thread is already stacked, but I'll bite since I am stuck on this problem and need help. I am working on a language learning solution that involves llms. The way I am branding it is "Anki meets Ai" because it combines a flashcard-esque method of generating complete exercises such as multiple choice, cloze, etc. with the tried-and-true SRS methodology.

I think it works great! The problem is, I think it works great. The issue is that it is doubly-lossy in that llms aren't perfect and translating from one language to another isn't perfect either. So the struggle here is in trusting the llm (because it's the only tool good enough for the job other than humans) while trying to look for solid ground so that users feel like they are moving forward and not astray.

Alex-Programs•1h ago
Hey, I happen to have run into a similar issue with my project!

I've documented a lot of my research into LLM translation at https://nuenki.app/blog, and I made an open source hybrid translator that beats any individual LLM at https://nuenki.app/translator

It uses the fact that

- LLMs are better at critiquing translations than producing them (even when thinking, which doesn't actually help!)

- When they make mistakes, the mistakes tend to be different to each other.

So it translates with the top 4-5 models based on my research, then has another model critique, compare, and combine.

It's more expensive than any one model, but it isn't super expensive. The main issue is that it's quite slow. Anyway, hopefully it's useful, and hopefully the data is useful too. Feel free to email/reply if you have any questions/ideas for tests etc.

kegs_•1h ago
Hey thanks for the reply! Is this "hybrid" method what you wrote in the last line - llm comparison?
Alex-Programs•1h ago
I'm not quite sure what you're asking?

It is in the LLM comparison blog posts, at least the newer ones, though it tends to be on the first line.

kegs_•1h ago
Sorry, when you said hybrid I was expecting something that was partly an llm and partly something else. How did you arrive at your coherence/idiomaticity/accuracy numbers (if you'll forgive me not delving too deep into the website)?
Alex-Programs•55m ago
Hybrid as in a combination of different LLMs. I recommend trying the demo on the site, it should give you an idea of what it's doing. The code is also pretty short.

So those numbers are from an older version of the benchmark.

Coherence is done by:

- Translating English, to the target language, to English

- repeating three times

- Having 3 LLMs score how close the original English is to the new English

I like it because it's robust against LLM bias, but it obviously isn't exact, and I found that after a certain point it's actually negatively correlated with quality, because it incentivises literal, word by word translations.

Accuracy and Idiomaticity are based on asking the judge LLMs to rate by how accurate / idiomatic the translations are. I mostly focused on idiomaticity, as it was the differentiator at the upper end.

The new benchmark has gone through a few iterations, and I'm still not super happy with it. Now it's just based on LLM scoring (this time 0-100), but with better stats, prompting, etc. I've still done some small scale tests on coherence, and I did some more today that I haven't published yet, and again they have DeepL and Lingvanex doing well because they tend towards quite rigid translations over idiomatic ones. Claude 4 is also interestingly doing quite well on those metrics.

I need to sleep, but I can discuss it more tomorrow, if you'd like.

GMoromisato•1h ago
I'm still working on https://gridwhale.com

It's basically a full-stack web platform written entirely from scratch. One of these days I'll write about it and get yelled at for reinventing the wheel.

But I'm using it internally and for my biotech clients and I'm still excited about it.

BSTRhino•1h ago
https://easel.games

A game engine that lets you code multiplayer games without coding the multiplayer! My idea was to put multiplayer into the fabric of the programming language itself. This allows the engine to automatically turn your game into a multiplayer game, without you needing to learn anything about networking or synchronization. I imagine there are lots of people who have the talent and creativity to create a multiplayer game but don't have the interest or patience in learning how to code multiplayer, and so that's who this is for!

I've been working on this for 3 years and there were lots of tricky parts rolling back and deterministically executing a whole programming language, but it's working now! My next phase is to increase the breadth of features so better games can be made with it!

shayway•1h ago
Very cool! I'll play more around with this later but right off the site UX is great. Being able to hit 'launch editor' and have it load a project right up without requiring an account or anything is just beautiful.
BSTRhino•10m ago
Yes you only have to sign up if you are publishing a game permanently, which I figure is reasonable since that means you will be taking up space on my server forever. But people can make whole games a never sign in if that’s what they want!
lelandfe•1h ago
"Make games with Ease," and the cursor forming the "l," is really nifty.
BSTRhino•9m ago
Haha yes I was really pleased with it and you’re actually the first person to acknowledge it out loud so thank you!
hopeadoli•36m ago
Awesome!
videogreg93•21m ago
I'm not sure who this is for. On one hand multiplayer games are complicated to make, even with a dedicated framework, but on the other the tutorial wastes time explaining to me how to undo with ctrl+z and there's even a large infobubble on how to copy and paste text.
BSTRhino•12m ago
This is good feedback! I thought it’d be a great first programming language for people and so I think I have aimed the tutorial far too basic, probably even for them. Maybe that’s where I am losing people. I am going to edit it and see if that improves the retention.
gabriel-uribe•1h ago
Nudges Mandarin-Chinese learners to read comprehensible input for 3 mins/day without an app :)

Simply emails you the story with chinese characters, pinyin, etc based on your level and story topics of interest

Link: https://dailychinesestories.com

static_void•1h ago
A card game in Ruby on Rails, with an emphasis on deep reaction trees, and where the resolution order of action trees depends on whether actions resolve before or after their triggers.

Its real purpose is twofold: I enjoy data modeling, and doing just enough Rails work to regain fluency after a gap.

https://github.com/alexnyeoverride/causality-rails/

rjmunro•1h ago
I've made a couple of silly browser games, http://matchmoji.arjam.net and http://matchmoji.arjam.net/minesweeper
Amza•1h ago
Tailor your resume and cover letter in minutes: https://resumebuildai.com
Alex-Programs•1h ago
I had an idea at one point that I'd record every cover letter I wrote, so that eventually I could fine tune a model to write in my style.

I didn't end up sending many, but I've noticed that it's really difficult to get AI to write in a decent style. I've tried giving it a list of AI-isms to avoid, and it just doesn't work.

I has the most success with deepseek V3, giving a list of AI-isms, then ending with "You have been randomly assigned the following writing style/personality: [codeblock]" then a stereotype. Eg "Write in the style of a to-the-point, concise HN commenter" works alright, while "Write naturally and without AI-isms" is hopeless.

(Don't worry, I'm not using it for HN botting or whatever, it just tends to write in a nice style when you give it that)

egorbatik•1h ago
https://zerem.fi - Offshore Real Estate - Crypto Friendly

* We are just starting with Projects in Porto Belo - Brazil. We are adding more countries soon, but it is worth to explore the catalog.

samirsd•1h ago
working on an app that lets you take multitrack “voice memos” by plugging your phone into an interface. then the audio is automatically synced to the cloud, akin to a primitive dropbox for audio. there’s a simple mixer to adjust levels for local playback. for now i use it to get hi fi recordings of band practice and shows.

https://carnyx.ai

aag•1h ago
I got tired of using Markdown and Org mode for writing web pages last year. They're so limited, and so full of odd gotchas and limitations. Instead, I started writing raw HTML, but with a post-processing step to add titles, headers, footers, and CSS, and to do macro-like things, e.g. insert pull quotes and YouTube viewers. But raw HTML is not great, either. I'm now working on an editor that lets me use Emacs-style commands and key bindings (e.g. character, paragraph, sentence, and word motion, deletion, and transposition; Emacs-style undo/redo; incremental search; and case conversions) to edit HTML in a WYSIWYG view. The new editor does it all in a Webkit-based HTML view built with Tauri. Editing this way is so much more pleasant and more powerful. I plan to publish it under an MIT license once it's good enough.
LarsDu88•1h ago
Gemini 2.5 TTS client integration for the Unity game engine so indie games can generate dialogue directly in the editor (and perhaps live games, eventually)
stared•1h ago
Making it easy to create good charts. Put your CSV data, write a prompt, and get a professional chart in any style - e.g. matching your company's website, slide deck style or blog post.

https://charts.quesma.com/

Now it is early alpha, but you can already give it a try.

bengold14•1h ago
RankPic (https://www.rankpic.info) is an app to help users crowdsource their best photo. I've been building over the past 3 years & it's grown into a lovely community of people who help each other pick their best pictures for dating apps, professional photos etc.

I've seen some pretty fun novel use cases, such as (multiple!) people using it to pick out glasses, wedding invites & so on.

I recently completed a leaderboard function that cross compares photos from different tests using Claude, which was really impressive and scared me for my day job..

arsalanb•1h ago
https://livedocs.com

An AI data scientist for serious data work. Think of it like an AI native Jupyter notebook.

peab•1h ago
HN is probably not the target audience for this, but hey, here we are: https://www.youtarot.app/pages/about

A web app for people to get tarot readings, and create their own tarot cards using AI. I'm enjoying working on this because I'm using as an opportunity to learn parts of the stack that I didn't usually do at my day job - frontend, design and marketing (my career has focused more on the backend).

crabsand•1h ago
I built an RSS to Bluesky poster an hour ago.

In the long run, writing a gui for https://github.com/iesahin/xvc and Git.

monkaiju•1h ago
CopDB (https://app.copdb.org/)

A community powered, wikipedia-like, database for tracking police and their activities.

michelangelodev•1h ago
https://www.saintbeluga.org/

I was a YC founder in 2006 and still do software engineering and data science full-time, but on the side I also do Christian apologetics, helping fellow engineers/scientists/mathematicians seek answers to life's deepest questions.

Some cool articles for the HN crowd:

- My interview of Evan O'Dorney, a three-time Putnam Fellow and two-time IMO gold medalist, who converted to Catholic Christianity: https://www.saintbeluga.org/veritas-part-i-conversion-of-a-p...

- In-depth scientific overview of Eucharistic miracles: https://www.saintbeluga.org/eucharistic-miracles-god-under-t...

- Conversion testimony by the Chief Scientist at NASA JPL: https://www.saintbeluga.org/veritas-part-iii-bellows-of-aqui...

hello0525•9m ago
Love this, great work. Rock on!
kingo55•1h ago
I'm trying out vibe coding a bit on my olive oil index site — building a full website with 11ty, tailwind and LLMs. The LLMs also serve as a data pipeline to watch and update content as new information is published online: https://www.extravirginvault.com/

I've always enjoyed the farm-to-table concept, but I find it really hard to identify trustworthy companies. Wine has been done to death, but I feel extra virgin olive oil is currently underserved.

p-s-v•1h ago
New Knife Day: (https://new.knife.day/blog/knife-steel-comparisons/all) My goal is to build the most complete wiki and social network for knife collectors, makers and consumers researching a new purchase
AttentionBlock•1h ago
Using LLM as a judge architecture to optimize multi-agent system prompts and configurations. For now it's achieved through LLM based consensus system that evaluates another LLM output, and based on its performance for a specific task, it's tune the architecture and the prompt e.g. refine the prompt, change the base model to a smaller or cheaper model, etc
crsn•1h ago
I’m building software to augment human cognition.

In particular:

To help solve forecasting & planning problems too hard to hold in your head, I’m converting natural-language formulations of constrained optimization problems into (back)solvable mathematical programs, whose candidate solutions are “scenarios” in a multi-dimensional “scenario landscape” that can be pivoted, filtered, or otherwise interrogated by an LLM equipped with analytical tools:

- 5 minute demo: https://youtu.be/-QdqiLp_9nY

- Details: https://spindle.ai

Eager to connect with anyone interested in similarly neurosymbolic “tools for thought”: carson@carsonkahn.com | +1 (303) 808-5874

kaiherng•1h ago
A cute medicine tracking app featuring an adorable mascot that gets increasingly annoying if you miss a dose (art & animations are original by me) - https://apps.apple.com/us/app/pill-buddy-meds-tracker/id6742...
TZubiri•1h ago
Oh hey, I saw this on product hunt or some copycat, and thought it stood out. It mades me wonder, is it based in a particular experience with yourself or a loved one?
Havoc•1h ago
Building a budget home server. Ebay style. There is a lot of gear out there that isn't suitable for gaming anymore but still very sound as home server.

Software wise doing proxmox + nixos LXC

egonschiele•1h ago
http://github.com/egonSchiele/typestache - Mustache with static typing
emadm•1h ago
I’m building a system for free universal ai access for the important things in life - education, health, government etc

Stuff that should be open source, open data

Made state of the art datasets, health models, research systems & agents so far @ www.ii.inc but the plan is ai first open source full stack systems for every regulated sector

Have a distributed ledger announcing soon to tie it all together and create a flywheel so more folk can get access to ai

StackRiff•1h ago
https://dateit.com

A social event planning app to capture the fun my friends and I had with facebook events, but without the facebook. We have native apps for iOS, Android and the web. dateit has a generous free features compared to competing apps (SMS invites, photo upload, customization).

My cofounder and I have fully bootstrapped this and now it mostly self sustains which is an exciting achievement!

It's been a fun project to hack on for the last couple years and spawned several interesting side quests. For example, the backend is in Swift (as I started as an iOS dev) so that has been an exciting space to work in.

Benjamin_Dobell•1h ago
I'm working on tooling to turn kids from consumers into creators. I'm focusing on game development initially, but have plans for video production and hands on crafts.

For older kids I've been making it easier to write games in Godot using TypeScript:

https://breaka.club/blog/godots-most-powerful-scripting-lang...

I'm building tooling using this technology which allows kids to create their own games, this is itself presented as a game kids can play through. Basically, imagine if Roblox actually delivered on its promises to kids.

Most of what we're building will be open sourced, so that older kids / young adults will be able export their projects and share their creations stand-alone.

Of course, telling kids they can create their own game is only relevant is kids want to do that. We're not locked into one way of thinking. We've also modified Overcooked 2, a traditionally co-op game and introduced a visual scripting platform which allows kids to code their way through levels:

https://www.youtube.com/watch?v=ackD3G_D2Hc

Overcooked 2 won't be the only game for which we do this. Introducing coding to existing games is a fun way to teach kids to code, without yet burdening kids with too much creative freedom. Kids already want to play these games, so this approach allows us to bring educational tooling to kids rather than vice versa.

I used to be Head of Engineering at Ender, where we ran custom Minecraft servers for kids: https://joinender.com/ and prior to that I was Head of Engineering at Prequel / Beta Camp, where we ran courses that helped teenagers learn about entrepreneurship: https://www.beta.camp/. During peak COVID I also ran a social emotion development book subscription service with my wife, a primary school teacher.

TZubiri•1h ago
If I told you I'd have to kill you
turbotim•1h ago
I’m working on https://spoken.me language practice for intermediate and advanced learners of English and Spanish. Hoping to launch a new flashcard experience in the next few days and a new role playing mode in the coming weeks. We’re small fry at the moment but it beats working at FAANG (except for the money)
TZubiri•1h ago
A local-first multi device app for digitally shuffling, dealing and recording game history and points for a specific points based card game (Truco)
monroewalker•1h ago
Now that Claude 4 is out, I’m making some updates to the project I’ve built primarily just with Claude Code: https://github.com/mwalkerr/BookmarkCanvas

It’s just a basic IntelliJ plugin which provides an infinite canvas to add code bookmarks to. I work on a large code base and often have to take on tasks involving lots of unfamiliar areas of code and components which influence each other only through long chains of indirection. Having a visual space to lay things out, draw connections, and quickly jump back into the code has been really helpful

The canvas and UI is built using Java AWT since that’s what IntelliJ plugins are built on, but it occurred to me that I could just throw in a web view and use any of the existing JS libraries for working on an infinite canvas. React Flow has seemed like the best option with tldraw being what I’d fallback to.

But then.. if the canvas is built with web technology then there’s no reason to keep it just within an IntelliJ plugin vs just a standalone web app with the ability to contain generic content that might open files in IntelliJ or any other editor. I’m pretty sure the “knowledge database on a canvas” thing has been done a number of times already so I want to also see if there are existing open source projects that it’d be easy enough to just add a special node type to

bob1029•1h ago
I'm currently beating around the bush on building a GitHub clone minus react, copilot, etc.

There's no reason I should have my browser tabs crash when I view a pull request involving more than 100 files. The page should already have been generated on the server before I requested it. The information is available. All that remains are excuses and wasted CPU cycles.

thephyber•56m ago
Are you just building a web front end on the GitHub API or are you building an end-to-end social programming service?
omosubi•26m ago
there's also no reason you should be viewing a pull request with more than 100 files :p
aduermael•1h ago
I'm building an open-source and mobile-first Roblox alternative called Blip. (https://blip.game)
greentec•1h ago
https://sublevelgames.github.io/blogs/2025-05-24-armor-games...

I analyzed 7 years of Armorgames.com data (999 games) to understand web gaming market trends.

Key findings that might interest fellow developers:

User standards are rising: Average ratings dropped from 7.02 (2018) to 6.45 (2025), but the percentage of high-quality games (8.5+ rating) actually increased from 12.3% to 14.7%. This suggests quality polarization rather than overall decline.

Genre trends: Rising: Idle games, Strategy, RPGs (deeper gameplay mechanics) Declining: Traditional arcade/action games Stable: Puzzle and Adventure (web gaming staples)

Innovation wins: The highest-rated "hidden gems" all had one thing in common - innovative mechanics rather than genre variations. Games like "Detective Bass: Fish Out of Water" (9.3 rating) and "SYNTAXIA" (9.1 rating) show originality still pays off.

Market maturation: The correlation between rating and popularity is surprisingly weak (0.126), suggesting quality ≠ virality. However, play count strongly correlates with favorites (0.712).

wtf242•1h ago
recently launched book recommendations feature for my books side project that I put a LOT of work into. I might be biased but I think it works well as long as you give it your favorite books.

https://thegreatestbooks.org/recommendations?demo=tgb2025

warning: account required, and the full featured version where you can specify book length, include/exclude genres/subjects, etc requires a membership. if you would like to test it though just e-mail me at contact@thegreatestbooks.org and I'll mark your account as paid.

heliographe•1h ago
I just shipped a camera app for iPhone dedicated to Bayer RAW capture (that's the true, unprocessed sensor output of your device - not Apple's ProRAW which is already demosaic'd and has noise reduction, etc).

https://bayercam.app

I had fun with the interface - it's themeable, and inspired by classic cameras: lets you quickly switch between full auto/half auto/full manual modes with dedicated dials.

Going to add more features in the coming months, but the #1 focus is keeping it super simple and blazing fast.

Given that virtually all processing pipelines these days stack multiple shots to create a photo, as far as I'm aware this is the only way of getting a "traditional" single-exposure photo on iPhone, where the shutter speed is actually meaningful.

There are other camera apps that support Bayer RAW capture, but those support a bunch of other formats, and you probably don't want Bayer RAW for most of your shots anyways, so for my own workflow it's better to have a dedicated app that I can launch really quickly rather than tap around in menus.

oliwary•1h ago
My favorite sideprojects are daily games. One I am currently enjoying building is VideoPuzzle: https://videopuzzle.org/ where you have to unscramble a video split into 4x4 tiles.

We are up to almost 200 puzzles, with around 700 players per day. I've become much better at finding videos that work well as puzzles and am working on adding small quality of life updates.

adityapurwa•1h ago
I am currently working on AnythingSticker - https://apps.apple.com/us/app/anything-sticker/id6745157608

An app that can turn anything into adorable stickers. In my region, people uses WhatsApp a lot, and there's this ability to create custom stickers. So we uses a lot of stickers on a conversation.

thephyber•1h ago
A few months into creating iOS apps after working on large distributed web apps for decades. Just released the first called _My Conversation Curator_ (voice to text dictation + AI summary) with Halo West[1]. The next app may be an interactive assistant to help craft OKRs and KPIs.

Separately, working on building an app to assist with cipher analysis of things like Kryptos and Bitcoin/crypto puzzles. Loosely modeled after CyberChef, but a native app that is capable of far more detailed frequency analysis and brute forcing with the GPU.

Also, experimenting with LLM workflows for both work and the rest of life. Prompt engineering seems like an incredibly valuable skillset for the next decade.

[1] https://halo-west.com/

petabyt•1h ago
I've been working on a Virtual DOM in C. Basically like dear imgui but it uses a retained-mode toolkit like GTK instead of rendering manually.

https://github.com/petabyt/rim

meowzarella•1h ago
an online marketplace for talents, sapces, and funds.

it's a tarpit idea that a lot of users and investors like to shit on so i decided to just build something that i like myself.

kebsup•1h ago
https://vocabuo.com

App with dynamic/flexible spaced repetition flashcards for language learning.

Recently I've added dialog & definition cards, so I can learn German from short dialogs with images and audio.

satisfice•1h ago
I am working on a critical thinking class based around the use of LLMs.

This involves exploring the ethics of using magic to accomplish tasks. The problem then boils down to a matter of epistemology— a testing problem. But testing is something you only do in the absence of trust. So critical thinking begins with the rejection of trust.

It’s been interesting to read about “Anomalistic Psychology” which is the study of magical thinking. Malinowsky commented that not a single canoe was built by Melanesian islanders without the use of magic, yet none of them would say that they could be built without craftsmanship.

Magic is the belief in the infallibility of hope, to paraphrase Malinowski. Which may explain why too many smart people are uncritical about LLMs.

berdon•59m ago
A cross between a text MUD and an early 2k browser based RPG. Hoping to incorporate many advanced MMO and LitRPG based features plus complex economic, npc, guild, quest, and crafting mechanics. It’s more of a passion project/hobby with no expectation of adoption. It has been very fun to build.
pizzly•58m ago
https://negativestarinnovators.com We been working on Thieves which monitors websites using AI agents. Users set natural language conditions for websites and get a email, Telegram, Discord, Webhook once their conditions has been met. We also have a REST API replicating the full functionality of Thieves.

Currently working on making it even more reliable, navigate pages and understand website images not just the text of the webpage. Also getting ready for a Product Hunt launch.

martin-adams•56m ago
I'm working on a resume review service. Really simple, submit your resume and I'll record a video analysis of it. I created it because every so often I get asked to review someone's resume and they've found it very helpful, and it's my way to address the poor resumes I've received when hiring.

https://resume.fail

wateringcan•56m ago
https://veeto.ai

A tool that scans California legislation and flags bills that might affect your startup. You drop in a link to your website or a short description, and it returns plain-English summaries and impact analysis of relevant bills.

T0Bi•55m ago
Planning a hobby alpaca farm (3-4 alpacas), very early stage.

Everything from farm related stuff (water, food, shelter, etc.) to self-sufficiency (solar, etc.) to real time monitoring (which cameras, affecting power supply).

Who knows if it'll ever happen, but just planning everything in detail is a lot of fun. Especially with weird regulatory constraints where I'm living, there's a lot to watch out for.

Example: Solar panels at >3m height need building permits. Snow in winter means panels should be set up at a specific angle. So my initial plan of putting the panels on my 2.5m high carport doesn't work. Either lower carport, lower angle, different place or getting a building permit.

nssnsjsjsjs•48m ago
This must be the dream for a lot of tech people living behind a screen. I can see myself wanting to do this (although maybe work on the farm not own it)
RobRivera•55m ago
A video game!
ChrisMarshallNY•54m ago
Well, I did a rewrite of this app (RiVal.T, an iOS timer)[0], and I'm working on a new release that includes a Watch app (acting as a remote control). Getting the Watch and phone talking reliably is a challenge, but I seem to be stumbling towards success (eventually).

I have a couple of other apps that I have plans for, as well. If I get sick of playing traffic cop, with the phone app, I may take a break, and work on them.

[0] https://riftvalleysoftware.com/work/ios-apps/rival-t/

Brystephor•53m ago
Reinforcement learning system. Currently trying to understand how to implement contextual thompson sampling and its details after doing non contextual thompson sampling. My YouTube history is a lot of logistic regression related videos at the moment.
TMEHpodcast•53m ago
Pfft. Obviously the funniest, most educational science podcast on the planet https://multiverseemployeehandbook.com/
yakshaving_jgt•52m ago
A HTML validator for websites and web applications. It’s just not scalable having to do this manually, and having valid HTML is still important. Wrong HTML can cause bugs, and can harm accessibility. This is becoming more important now in Europe with new accessibility laws coming into force next month.

https://jezenthomas.com/2025/05/dont-skip-html-validation/

sage76•52m ago
Working through PRML and creating a full solution set, albeit very slowly.

https://github.com/abhimanyu-jain/PRML_Solutions

p0deje•51m ago
https://github.com/alumnium-hq/alumnium

Keep working on a test automation library that should allow writing browser/mobile tests easier with LLMs help, so I could focus more on testing, and less on automating.

d4mi3n•46m ago
I’m working on a Content Security Policy parser. There are a handful of them around the web, but I couldn’t find one that implemented the entirety of the CSP spec and I wanted something I could use to verify structure and validity of CSP directives.

https://github.com/damien/content-security-policy/tree/main/...

Once I’m happy with my take on a reference implementation I’m hoping to create some tooling with it to do some interesting analysis of CSP abstract syntax trees to identify things like policy anti patterns, reporting on capabilities a policy grants to a domain/resource, and a better mechanism for allowing tools like OPA, SemGrep, etc. to define and enforce rules on a policy.

carpo•46m ago
Ive almost finished the first version of a desktop video library app I've been writing for myself. I had the idea last year, but the cost of sending images to an LLM made it too expensive (to run over about 1500 videos), but now it's fairly reasonable.

In the app you pick a folder with videos in it and it stores the path, metadata, extracts frames as images, uses a local whisper model to transcribe the audio into subtitles, then sends a selection of the snapshots and the subtitles to an LLM to be summarised. The LLM sends back an XML document with a bunch of details about the video, including a title, detailed summary and information on objects, text, people, animals, locations, distinct moments etc. Some of these are also timestamped and most have relationships (i.e this object belongs to this location, this text was on this object etc). I store all that in a local SQLLite database and then do another LLM call with this summary asking for categories and tags, then store them in the DB against each video. The App UI is essentially tags you can click to narrow down returned videos.

I plan on adding a natural language search (Maybe RAG -- need to look into the latest best way), have half added Projects so I can group videos after finding the ones I want, and have a bunch of other ideas for this too. I've been programming this with some early help from Aider and Claude Sonnet. It's getting a bit complex now, so I do the majority of code changes, though the AI has done a fair bit. It's been heaps of fun, and I'm using it now in "production" (haha - on my PC)

Eikon•43m ago
I am working on https://www.merklemap.com/ a certificate transparency search engine.
trevinhofmann•43m ago
I recently launched Early Access for my AI-powered service for automated bug reporting, PR review, fearure implementation, a difficult test/documentation/refactor suggestion PRs.

It was in the works for about a year, and I'm now trying to find ways to make it more marketable and useful.

The three main things I'm working on are:

1. GitLab support (GitHub only at the moment) 2. A demo on the landing page that doesn't require any sign-up. 3. Better "vibe coding" experience through the Chat interface for those who want it.

I built it with TypeScript on the front- and back-end, React, Node.js, and PostgreSQL. And I over-engineeres it, as one does, with a Redis cache and websockets to push the latest data to web clients so the latest info is always shown without needing to refresh. I'm using the OpenAI API right now, but I want to switch to local models when I can invest in the hardware for it.

Edit: https://mysticode.ai - Would absolutely love feedback.

cheschire•43m ago
My wife setup a mini-pond in a 20 gallon flower pot we bought from walmart. I've been prototyping various accoutrement in Blender and 3d printing things like different types of pots to hang plants from the sidewalls, and caps for the pump, etc.

3D printing has completely changed my spare time usage.

parsabg•42m ago
I've been working on a browser use agent embedded within a Chrome extension: https://github.com/parsaghaffari/browserbee

You can use it to check and summarize news and social media, fill out forms, send messages, book holidays, do your online shopping, conduct research, and pretty much anything else that can be done within a browser.

steida•42m ago
I work on the local-first that scales.

https://www.evolu.dev/blog/scaling-local-first-software

jumploops•41m ago
We’re trying to make AI-first apps accessible to everyone.

Here’s a simple app my toddler made to generate toy trains[0].

“Real users” are using it to build personal software tools like finance dashboards, content generators, and educational apps.

Right now the functionality is great for many simple tools, but it’s notably lacking a first-class data layer (coming soon!).

All of the AI-generated code runs in secure MicroVMs, and the front-ends are just static assets, meaning the apps scale to zero when not in use.

We’re currently in the process of making the builder less of a “workflow” and more purely agentic, which should improve the overall success rate.

[0]https://toy-train-generator.magicloops.app/

bqmjjx0kac•21m ago
> Here’s a simple app my toddler made to generate toy trains[0].

Can you explain what you mean by this? How did a 3-year-old (or younger) meaningfully contribute to the design of this app? Do they know how to read?

hopeadoli•41m ago
A mobile app called Trip o'clock (https://tripoclock.com)

An AI-trip planner with a nice twist. It shows you everything you need to know about a place even before getting there: Images, a great summary, cost of living broken down weather conditions etc. It also comes with the usual features you'll expect in a trip planning app (ai itinerary suggestions, travel expenses tracker, group chat for group trips, google places integration for looking up places to eat, things to do, healthcare places and transportation centers, and a private travel checklist). You should check it out today!

VladVladikoff•40m ago
Drowning in technical debt from my 12 year old auction startup. While building another startup for the hotel industry. Wish I had more time for personal/side projects. I have a million ideas that just die on lack of time to execute.
arjunbajaj•40m ago
Fostrom (https://fostrom.io)

A developer-focused IoT Cloud Platform. The idea stems from pain points experienced while automating an indoor farm a few years ago where I had to spend way too much time building the data collection and analysis infrastructure instead of focusing on the actual automation.

Devices connect via secure MQTT, HTTP, or WebSockets and send structured, typed data. Each device gets its own sequential mailbox for messages. You can trigger webhooks or broadcast messages to other devices based on incoming data, powered by programmable actions.

Just deployed to production. Currently working on Device SDKs (coming very soon) and time-series analytics. Check out the platform, we're in technical preview now. Happy to answer questions and appreciate any feedback.

bryanhogan•39m ago
I'm working on a customizable app for self-tracking, a combination of habit trackers, health logging and journaling. You should be able to track what you want in a way relevant for you. Think of a combination of free form CSV programs x habit tracker or health app.

App will be local-first and without locking important features behind a subscription.

Very recently I finished my bachelor thesis which was about this app (focus usability and market fit).

Also made this site a few days ago, get notified when it launches: https://dailyselftrack.com

More about me here: https://bryanhogan.com

alprado50•38m ago
I'm migrating my blog (https://alprado.com/) to a custom solution built with Laravel. I know the HN community appreciates simplicity, but in my opinion, hosting static HTML is almost as easy as hosting PHP. However, PHP gives you the flexibility to build an interactive and optimized CMS.
seveibar•37m ago
This weekend working on an open-source algorithm to automatically lay out schematics. Easy problem to do poorly and very difficult to do well! My current approach is “match to existing corpus of well-laid-out schematics, then adapt until the netlist fits” hopefully it works out!
bdxn•37m ago
OpenCLI - https://github.com/bcdxn/opencli

A document specification for defining command line interfaces.

It's really just a fun side project to get more familiar with Go. The goal is to be able to generate boilerplate code in a few languages/frameworks and to generate documentation in a couple formats.

joeriddles•33m ago
This looks really cool! OpenAPI for CLIs is a great idea.
jorisboris•36m ago
Exploring N8N

I have the impression clients like it when their code is “visual” so I’m trying to learn more of it to attract new clients

ryukoposting•34m ago
A POTS line simulator. Basically a telco central office that fits on your desk. Up to 16 lines, touch tones only, only 1 call at a time. No digital intermediate between the caller and answerer, just a pure analog line.

I'm going to plug a couple phones into it, but the main goal is to get all my old computers to talk to each other using their modems.

bl4kers•33m ago
Finally got around to cleaning up and publishing my userscript for recreating the old Slack UI (before August 2023)

https://github.com/blakegearin/old-school-slack

synergy20•33m ago
A wifi router that blocks all websites except for those needed for kids to study when you need it, and there is no way to escape, not even with vpn or tor or whatever, also with dashboard to show where they spent time on for how long.

My middle school aged kids was able to escape with free proxy, vpn, tor etc in the past which forced me to figure out a way to lock it down totally when it's absolutely needed.

ccvannorman•31m ago
Mathbreakers 2 (https://mathbreakers.com)

A 3D game to help students in grades 5-8 learn Arithmentic, Fractions, Geometry, and Algebra.

50% or more of middle school students experience math anxiety, and it's no wonder that so many people grow up believing, "I'm not a math person." Math can be incredibly fun and beautiful if approached and experienced the right way. Mathbreakers is a vibrant, interactive world where all game mechanics are built on intrinsic mathematical properties, so simply by playing the game, a foundation of understanding of those concepts is built.

We're doing early prototype testing now with a planned launch in September 2025. The game engine is PlayCanvas (engine-only) and the platform is WebGL (Mac/PC/ChromeOS).

Tanzirul•30m ago
Replyhub (https://replyhub.co), a tool that helps businesses not just monitor Reddit and X, but actually engage with the right conversations that can turn into customers.

The idea is simple: instead of blasting you with every keyword mention like F5bot, Replyhub filters for posts where people show real buying intent. These are posts where they ask for recommendations, compare products, or look for solutions.

It also suggests context-aware replies and helps collect leads from people who show real interest.

If you want to reach niche communities where people are actively discussing products, it might be useful.

Would love to hear feedback or questions from folks here.

busymom0•29m ago
I am working on version 2.0 of HACK (an iOS, macOS and Android app for hacker news). Currrntly only working on iOS and macOS version.

It's not exactly version 2.0, it's built entirely from scratch and instead of only hacker news, it can also be used for similar forum sites like Lobste.rs, Tildes, Lemmy etc. In fact, it's built in a way such that more website support can be easily added on the fly.

I had restarted this 3 times in the last 2 years. But the current code is finally coming together to be released to the public.

Currently, I already have the reader part working. So one can read posts, comments, expand collapse comments, read articles etc. I don't have the writer part working yet (voting, favoriting, commenting). I am debating whether I should just release the reader part first and then continue working on the writer part and release it as part of update. Thoughts?

https://apps.apple.com/app/id1464477788

viksit•28m ago
open source llm compiler for prompts called selvedge.

rather than manually write prompts for llms (which is like hand coding byte code for cpus), declare a structure and instructions and let the system do prompt writing for you.

it also exposes an optimizer which can do sophisticated prompt learning for tasks.

github.com/viksit/selvedge

cckolon•23m ago
https://ewatchbill.com - a fair schedule generator that uses simulated annealing to minimize a ‘unfairness’ heuristic. I wrote it for my friends in the Navy who have to write duty bills every month.

https://bearingsonly.net - a submarine combat game in the browser.

simlevesque•22m ago
Free worldwide reverse and forward geoloc. Based on DuckDB + Parquet files. I just got access to a big server for free by some kind folks to process the planet.osm data.

The idea is that instead of running Nominatim which is costly you can just query Parquet files over the network.

Instead of a cluster of PostgreSQL servers all I need is a bunch of static hosting holding the dataset that's around 1Tb.

Send me an email if this interest you, it's in my profile.

primitivesuave•19m ago
TypeScript Coach (https://ts.coach)

While I love the official TypeScript handbook, it's not easy to play around with the code examples or approach it as a beginner. I started working on a complete TypeScript tutorial that also showcases some advanced use cases. All the code examples run in the browser, and there are some neat visualizations that clearly show what the type system has picked up.

I've been trying to fix some of the performance issues, finish writing all the content, and adding documentation before making the GitHub repository public - right now the page can hang when loading a long tutorial.

Levitating•16m ago
Most recently, a tool for identifying NTP daemons and testing their capabilities: https://github.com/LevitatingBusinessMan/ntpscan

I am also working on a web frontend for rrdtool (for graphing collectd statistics): https://github.com/LevitatingBusinessMan/collectrack

And a wayland bar that is configured via a Ruby DSL: https://github.com/LevitatingBusinessMan/rubybar

reducesuffering•15m ago
How to find your ideal place to live in the US: https://exoroad.com
taormina•14m ago
I’m still working on Danger World!

https://danger.world

Flutter + Flame + Spine + YarnSpinner. After a year of development, we’re coming up on some very fun milestones!!!

srcreigh•12m ago
My workplace is a bird conservation non-profit with java code from 2006 and the website is many jsp files.

I've added a react SSR system. It has node subprocess code for rendering HTML from java via stdin/stdout. There's a Node/Vite proxy server that adds the fancy HMR you expect from SPA apps.

It supports multiple roots on a page, every SSR component has data-props and data-componentname, and the entry script just queries those attributes and hydrates everything.

The node renderer script is packaged as an EXE which is deployed in WEB-INF on the server.

It's fun to add the amazing React tooling to an old codebase. It also shows how you really, really, really do not need NextJS.

pizlonator•10m ago
About to port libffi to Fil-C.

Unlike most programs, which just work in Fil-C with zero or no changes, libffi needs to basically be rewritten. Instead of using assembly for reflectively crafting calls it needs to use the Fil-C zcall api. And instead of JITing closures it needs to use the Fil-C zclosure_new api.

Should be fun

fathermarz•9m ago
I have started to lean into my love for education and security and created Phended for non-technical users. I just did a rebranding, added an LLM chatbot, and a learning management system which I am going to be working on courses for the next little bit.

Would love some feedback overall and suggestions: https://phended.com

raindy_gordon•8m ago
https://finalefeline.com

I'm developing a small community focused on rating TV show endings. I've grown tired of investing time in series that get canceled and end on cliffhangers. Unless the show is really good, and even then, I prefer starting knowingly.

wtp30twice•2m ago
biotech odor CPG startup. just dropped $1800 to make first prototype. super excited. my 1st ever startup. any advice?