frontpage.
newsnewestaskshowjobs

Open Source @Github

fp.

Meta moves to unwind $2B Manus deal after Beijing's demand

https://techcrunch.com/2026/06/13/meta-reportedly-moves-to-unwind-2b-manus-deal-after-beijings-de...
1•geox•30s ago•0 comments

Double, BigDecimal, or Fixed-Point?

https://blog.frankel.ch/bigdecimal-vs-double/
1•theanonymousone•55s ago•0 comments

RFC 5218: What Makes for a Successful Protocol? (2008)

https://www.rfc-editor.org/info/rfc5218/
1•themaxdavitt•1m ago•0 comments

Git merges can be better

https://brandondong.github.io/blog/git_merges_can_be_better/
1•thunderbong•1m ago•0 comments

The Future of Work Is Getting Out of the Way

https://julienreszka.com/blog/the-future-of-work-is-getting-out-of-the-way/
1•julienreszka•3m ago•0 comments

FFI in Miri at 8000 segfaults per second [video]

https://www.youtube.com/watch?v=9X-ngiKo_Y0
2•nia-e•3m ago•0 comments

Show HN: The Engineer – Drive Claude Code from a GitHub Issue to a Merged PR

https://github.com/FarzamMohammadi/the-engineer
4•m_farzam•8m ago•0 comments

Gemma 4 for Telephony: From Two AI Models to One – Until I Switched to Chinese

https://medium.com/@j.y.weng/gemma-4-for-telephony-i-replaced-two-ai-models-with-one-in-my-voice-...
2•fidotron•10m ago•0 comments

A frontier without an ecosystem is not stable

https://twitter.com/satyanadella/status/2066182223213293753
2•jger15•11m ago•0 comments

Defensible Deep Research from Open-Weight Models

https://thinkwright.ai/two-phase-research
2•oceanwaves•11m ago•0 comments

Amodei the Man Behind DeepSeek?

https://txt.fyi/e8f40392583842df
4•ConteMascetti71•13m ago•0 comments

Show HN: Landmark AI and ML research explained, redrawn, animated

https://research.rudrite.com/
2•mridul_sahu•14m ago•0 comments

Show HN: Kage – Shadow any website to a single binary for offline viewing

https://github.com/tamnd/kage
10•tamnd•18m ago•3 comments

Prop-for-that: CSS reacts, JavaScript just listens

https://prop-for-that.netlify.app/
2•tobr•18m ago•0 comments

PDFs Don't Have One Meaning: Measuring Semantic Drift Across 24,824 Files

https://pqpdf.com/research.php
2•pqpdf•19m ago•0 comments

Flowscape – A Water Logic Tool

https://github.com/xraid/Flowscape
2•xraid•20m ago•0 comments

SillyTavern: LLM Front End for Power Users

https://sillytavern.app/
2•doener•20m ago•0 comments

The Capitoline Wolf

https://thehappytraveler.ca/travel-guide-italy/capitoline-wolf-siena-rome-myths/
2•jruohonen•22m ago•0 comments

The Trouble with Municipal-Level Population Projections

https://homefreesociology.com/2025/12/08/the-trouble-with-municipal-level-population-projections/
3•luu•22m ago•0 comments

Ask HN: What's the best way to advertise your startup without making videos?

2•ynxshiny•23m ago•0 comments

Not slow and not steady – Unsung

https://unsung.aresluna.org/not-slow-and-not-steady/
2•rbanffy•24m ago•0 comments

Soviet Whaling

https://slate.com/news-and-politics/2022/06/history-of-soviet-whaling-greenpeace-twentieth-centur...
3•simonebrunozzi•26m ago•0 comments

Multistack – Lightweight TUI for orchestrating coding agents

https://github.com/gi-dellav/multistack
2•gidellav•29m ago•0 comments

Zerostack v1.5 – Lightweight Unix-inspired coding agent

https://github.com/gi-dellav/zerostack/releases/tag/v1.5.0
2•gidellav•30m ago•0 comments

The Road to a Social Cybernetics

https://miltonlmueller.substack.com/p/the-road-to-a-social-cybernetics
2•dimiprasakis•32m ago•0 comments

Cull–screenshot widget for Windows (Ctrl+PrtScn → save/copy/delete in 7 seconds)

https://www.cull.live/
3•dev1601•34m ago•0 comments

Knowing How and Knowing That – Gilbert Ryle [pdf]

https://www.informationphilosopher.com/solutions/philosophers/ryle/Ryle_KnowHow.pdf
2•soupspaces•36m ago•0 comments

Is it possible to write a kernel module which will blow the PC speaker?

https://lore.kernel.org/lkml/CABG1boPZkP_HxOY+96cKqrv9UKujWnaWK-_dPQX+Zk6BSuZrwA@mail.gmail.com/
3•thinkingemote•36m ago•0 comments

JPMS Explained Through a C# Analogy

https://old.reddit.com/r/java/comments/1u5o74m/jpms_explained_through_a_c_analogy/
2•Tomte•37m ago•0 comments

Topological Derivation of Toronto's Time Boundaries (4/3πC)

https://medium.com/@f9121212/topological-derivation-of-geometric-boundaries-for-positive-and-nega...
3•ortrich•39m ago•0 comments
Open in hackernews

Ask HN: What are you working on? (June 2026)

33•david927•1h ago
What are you working on? Any new ideas that you're thinking about?

Comments

verdverm•1h ago
https://github.com/verdverm/gmd

> gmd indexes local markdown with full-text, vector, and hybrid search on Typesense; web search, fetch, crawl, and research; llm-wiki pattern and agents; local or cloud.

faangguyindia•1h ago
https://macrocodex.app/

A very simple idea: when you eat more than your maintenance calories, you gain weight; when you eat less than your maintenance calories, you lose weight.

By using an algorithm, we can accurately figure out your maintenance calories more accurately than traditional regression based formulas like katch mc ardle.

It's way more accurate than calorie burn tracking devices like fitness bands and watches. (garmin/apple watch etc...)

MacroCodex helps you spot dips in maintenance calories from metabolic adaptation, then auto adjusts your calorie target and macros so your plan stays aligned with your real maintenance calories (TDEE).

It's very useful to those who find it hard to gain or lose weight.

it's a completely free app, no paywall, no unnecessary data collection.

Already reached 13,000+ users

NiceWayToDoIT•1h ago
I’m working on Peak Flow Meter Diary, a simple app to help people with asthma record peak flow readings more easily, then combine those records with environmental data to provide earlier warnings about possible triggers.

In the UK alone, around 7.2 million people have asthma. Globally, WHO estimates that asthma affected 363 million people in 2023 and caused 442,000 deaths.

Peak Flow Meter Diary is not meant to detect every possible trigger. It will not warn you if someone suddenly sprays perfume nearby, or if a dusty bag is opened in the same room. But it could help with risks that can realistically be monitored ahead of time, such as weather, pollen, pollution, cold air, storms, and similar factors. The aim is to make daily tracking easier, show simple visual warnings and notifications, and make it easier to share useful records with clinicians.

I’m also trying to build it in a way that reduces paper, plastic, and electronic waste. If funding allows, I would like to make the project carbon-negative.

That is the bigger dream: to make a small example of how even modest start-up can think about environmental impact from the start, and use it as a practical showcase.

The pitch and full project explanation are here: https://www.kickstarter.com/projects/why5/peak-flow-meter-di...

Feedback welcome, especially from anyone with asthma, clinicians, carers, or people who have worked on health tracking tools. By now I know that my kickstarter is not going anywhere, so I would value any input was the idea that bad, or lack of marketing and accessing appropriate groups etc. I think this community has a lot of experience so I would like someone to share what could have I done better. Do not be shy to tell me if you think idea was waste of time.

1024bits•1h ago
I'm working on Totem (https://totemkb.com), a collaborative knowledge management system built entirely in Rust without any HTML or web-tech. Currently supporting Windows, MacOS, Ubuntu, and iOS (although the iOS build is currently in review).

Although the goal is to build an efficient all-in-one-workspace, I wouldn't run a company on it just yet. Right now I'm looking for early adopters who don't mind the rough edges and relatively minimal feature set.

You can grab an early build at https://alpha.totemkb.com.

New workspaces will be in a 14-day 'trial' mode, email rohit@totemkb.com if you'd like me to upgrade your workspace free of charge.

SvenL•22m ago
Terms of service link seem not to work. Otherwise it looks interesting.
davidbarker•1h ago
Currently working on HN Alerts — a simple free site I made to alert me (via email) to trending stories on Hacker News.

It sends me an email once a story hits a certain number of upvotes per minute, so it's useful for keeping track of breaking news.

It'll also soon allow you to get alerted to specific words or phrases in titles. (I have one set up so the monthly hiring threads notify me as soon as they appear.)

https://hnalerts.com

argee•1h ago
> It sends me an email once a story hits a certain number of upvotes per minute

So do you get one email per-story that fits this criteria? Or is it some kind of roll-up?

davidbarker•1h ago
Typically one email per story.

It checks every 5 minutes, and if more than one story happens to meet the criteria during that 5 minute bucket then it'll put them into one email (so the "hiring" checks appear in one email). But in reality because it's rare that 2 stories will trend within the same 5 minute bucket it ends up being one email per story.

david927•1h ago
I'm using an old domain to put together a curation of film edits set to music

https://brodlist.com

ajayvk•1h ago
Been working on making it much easier for application deployments to get access to a isolated database/schema. The usual pattern currently is to assume that each app creates a new database, which ignores the backups, monitoring etc required for each database. Implemented support for Postgres and MySQL.

Wrote up more details at https://openrun.dev/blog/service-binding/

aleda145•1h ago
Adding agents to my SQL canvas (https://kavla.dev)

Here's a live example of it figuring out when to post on HN: https://kavla.dev/hn (spoiler, its noon UTC on Sundays)

And here's it generating an interactive map of 20000 earthquakes: https://kavla.dev/quakes

I feel like the canvas is actually a great way to interact with an agent, everything it does is visible, so auditing what it did is (relatively) easy.

I still got some credits to burn so agent usage is free atm (you still have to sign up to use it though)

opticsketch•1h ago
A 3D optics simulator (lenses, mirrors etc.) - https://opticsketch.github.io/opticsketch/.

I sometimes need to have a quick but realistic model of an optical system without paying a few thousand for some of the well known commercial offerings, so I've been building this.

davidbarker•58m ago
I have no practical use for this but I want to play with it anyway. Looks cool.
opticsketch•44m ago
Thanks. There is a free demo that would be good just for playing around with the basics. https://opticsketch.github.io/opticsketch/downloads.html.

It's not signed yet, but I have included the results of a Hybrid-Analysis scan and I am verified by Lemon Squeezy for the full version.

pradeep1177•51m ago
I've been thinking about and working on a solution to automatically resume a Claude code session in the same terminal when my quota resumes. I hate waking up and typing "please continue"
BrunoBernardino•48m ago
[NO-AI]

My wife and I continue to work on Uruky [1], a simpler Kagi alternative, based in the EU.

Last month we launched image search (got out of beta this month), added our own index and crawler (via Uruky Site Search [2]), and reached 100 monthly active accounts (we’ve passed 150 now)! You can also see a privacy-focused independent blogger wrote about us [3]!!

You can check out the main differences between Uruky and Kagi, DuckDuckGo, SearXNG, etc. in the footer (right side), but one huge difference is that with Uruky, after being a paying customer for 12 months, you can download a copy of the source code (licensed as BUSL into AGPLv3 in 2 years — a suggestion made here in HN)!

You can also now get a free trial for 2 hours when you signup if you pass a proof-of-work captcha (another suggestion made here on HN, and it uses a local Altcha).

Our main challenge continues to be discoverability and outreach because we want to do it ethically. Ideas are welcome! We’ve been sponsoring open source projects, open source maintainers, and indie, small-web, and privacy-related websites and applications.

Feature-wise, for June we’ve already added a ton of personalization and privacy-increasing features like URL rewrites, cash-by-mail payments, and anonymous vouchers! Upcoming is partnering with ProxyStore to sell vouchers (we’re currently in talks for this), so you can buy vouchers with XMR/Monero or other cryptocurrencies. Then we’ll be looking into increasing our own index, focused on indie/small web.

Thank you for your kindness!

[1]: https://uruky.com

[2]: https://uruky.com/site-search

[3]: https://theprivacydad.com/interview-with-the-engineer-of-uru...

brynet•44m ago
Making rent as an open source developer.

Desperately trying to attract new monthly sponsors and people willing to buy me the occasional pizza with my terrible HTML skills. Is it working?

https://brynet.ca/wallofpizza.html

ynxshiny•26m ago
Built an app that helps you detect if a video (tt/reels) is lying about those "do this and you'll make 10k a month"!

https://legitize.app/

still very early and im trying to keep it very affordable, since the whole point is I dont want people wasting their money on hustles that were never legit

addaon•11m ago
> an app that helps you detect if a video (tt/reels) is lying about those "do this and you'll make 10k a month"

There’s a Unix CLI tool that implements an accurate version of this… check out /bin/yes.

RamblingCTO•24m ago
Two things:

CRM with agent baked in that can properly do stuff. No idea why attio/twenty are soooo bad at this. It's a table. getcrme.com / https://github.com/ChristianSch/crme

and gargoyle, an activitypub server with a (theoretically mastodon compatible UI) https://github.com/myfedi/gargoyle. Was annoyed at the homogenous fediverse dev teams out there that don't want their precious service federate with others. I want more federation (tested it with bookwyrms and lemmy for now. Mastodon/GTS also working ofc) and a pretty UI and not waste time with weird identity politics. You do you. I want an open fediverse, not a filter bubble. And GTS was too hard to hack on.

goenning•23m ago
A kubernetes desktop client that can connect to multiple cluster simultaneously

https://aptakube.com/

stuartmemo•23m ago
Still chipping away on Raygum! Like Letterbox for music.

https://raygum.com

raphinou•21m ago
Putting finishing touches on an open source multi sig solution to authenticate digital artifact, aiming to increase security of the software supply chain. It's open source, completely self hostable, incl internally, support air gapped signers, fully auditable (data store is a puglic git repo). It's an alternative to sigstore, making different decision.

Website: https://www.asfaload.com/

Code: https://github.com/asfaload/asfaload

Benjamin_Dobell•20m ago
Still plugging away at Breaka Club, where kids take photos of their hand drawn art and build games using it. Starts out as no-code, photograph an AprilTag and it imbues the image with functionality.

https://breaka.club/blog/why-were-building-clubs-for-kids

We also teach kids visual scripting in Overcooked 2!, allowing kids to code their way through the levels of an existing much beloved game:

https://youtu.be/ITWSL5lTLig

I'm running an in school pilot this week (Lunch time school club).

The tech stack for the main product is honestly pretty intense at this point with full multiplayer support, offline play, transitioning from client authoritative to joining a remote server. Built atop GodotJS, TypeScript bindings for Godot, which I maintain. Huge monorepo with over a million lines (yes, I'm aware that's NOT a good thing), and GodotJS itself is not included in that.

ccvannorman•11m ago
This is cool. Sent you a connection request on LinkedIn :)
yodi•20m ago
I'm build open source : Sovereign AI Infra, Deployed in Minutes. Deliver Private AI in your cloud organization. Everything in full control.

The idea is simple: Its handle of the complexity for AIOps infra like GPU VM provisioning, NVIDIA driver setup, Docker setup, model download, and launching the inference server. User can run any OSS and AI tools inside their cloud.

website + video demo: https://www.dagploy.com github : https://github.com/dagploy/dax

csnate•19m ago
I'm building a plugin for Ghidra called Specter that aims to bring semi-deterministic agent workflows to Ghidra. It adds a terminal like interface to Ghidra's code browser where you can chat or run DSL queries.

The project is currently 100% vibe coded with codex\gpt-5.5, but after running some experiments, I'm working on replacing some of the vibe coded SQL engine with Apache Calcite.

https://github.com/coldentry/Specter

oinoom•18m ago
Reflect [1], it’s a local-first privacy focused self tracking and data analysis app where you can set goals and run self experiments

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

victormartin•16m ago
Built TechnoJam (https://technojam.app), a music-making app for kids 4+. It’s a DJ launchpad (drums, bass, melody, chords) but every tap is quantized to stay in scale, so kids with zero music knowledge can have tons of fun making electronic music.

Deliberately no ads, no subscription, no tracking, works offline.

postalcoder•16m ago
https://hcker.news/

i've massively improved a bunch of things like the AI filter, which now gives you the option of filtering out github repos with AI authorship.

Also improved comments, which I'm serving through my own backend which has made loading of comments super fast, and it's going to be the foundation for some really great other features coming soon.

Soon: HN feature parity via browser extension and sync'd accounts.

simosalmi•16m ago
Working on a multi-agent chat, about Yoga, Ayurveda and wider scriptures: https://livingshastra.org
pkhamre•15m ago
Working on continuously improving my docker image for running OpenCode in an isolated and security-focused environment.

https://github.com/pkhamre/opencode-docker

vaibhav_sinha•14m ago
I have been building https://longhorizon.dev

It let's developer do test planning and testing automation using their coding agents. The records of the testing sessions are then shareable and can be added to PRs, giving the reviewers visibility into how the feature works, what scenarios are handled and tested and what might have been missed.

mattkevan•14m ago
• A social ebook reading app where you can create reading groups and have realtime discussions.

• A visual moodboard and notes app that uses local models to link and surface content, a bit like an AI powered Memex.

• A new UI design tool for Mac/iOS with deep support for design systems and AI agents.

• A CMS and static site generator that runs entirely in the browser. Download the site as a zip or publish directly to GitHub/Netlify.

https://github.com/sparktype-project/sparktype

a_t48•14m ago
https://clipper.dev

I made Docker not suck for large images. 2-10x faster depending on the operation. I’ve spent the past two weeks burning down the last bits needed to release a BuildKit integration.

addaon•13m ago
Trying to write a formally verified simplified (1D) implementation of Ruckig, more to learn the tools than for the result, although I want that too. Some fun challenges with numeric stability (using the big hammer of arbitrary precision to address that for now), etc. Still don’t have a real path to bridge correctness arguments through a formalization of Sturm’s theorem or similar, accepting it as an axiom for now.
niothiel•13m ago
I've been continuing work on cardcast.gg. It gives you the ability to play Magic: The Gathering with your friends remotely using a webcam.

In the last month or so I added a few nifty features:

- Auto-scan functionality: Instead of having to click on cards to discover what they are, I can now do whole-frame detection on an interval (configurable), so players can mouse over the webcam stream of another player and automatically see what the actual card is. Super helpful for deciding who to attack and makes turns quicker!

- Card view is now grouped by player, since auto-detection will populate a lot of cards during the course of a game.

- Switch the video stream to Livekit from my homebrew version. Players were having video trouble and I hope Livekit is good enough so solve that problem.

Next up: I really want to build a community around this, and I'm struggling on getting the word out to people / having them try it out. I've done some SEO and word of mouth advertising, but haven't had much luck. I feel like I need to switch directions a bit. I'm a developer by trade, so this is wholly new to me.

Come check it out: https://cardcast.gg

ternaryoperator•13m ago
Jacobin, a JVM entirely written in go https://www.jacobin.org
tracerbulletx•12m ago
I've been turning my Media Viewer into a complete local first media ecosystem for automated tagging, a media server, phone swiping, and a web version of the viewer so you can access it remotely. https://lowkeyviewer.com/

The thing Im most proud of though is just the viewer, its designed to just open all the images and videos in a folder, and then there is no UI except a right click context menu, the list is a grid or a masonry layout that uses 100% of the space for the images/video so you can just navigate them. It adds anything you open to a local sqlite db so you can tag things if you want optionally. Also control modes that make sense for either a mouse or a laptop trackpad.

agentifysh•12m ago
TensorZero, LLMOps gateway, was archived yesterday and I forked it to continue development and keep it open source. I also applied for 6 months of codex credits which I will dedicate to the project.

https://github.com/agentify-sh/gateway

lylejantzi3rd•10m ago
I'm working on GPS tools to help support my current contract. I've found there are no good tools for tracing a route on a map and having a mobile device think it's traveling that route. I'm not just talking GPS coordinates, but speed, direction, motion detection, precise timing between waypoints, being able to play these trips forward and backward, step by step, etc. I'm talking time-travel debugging for GPS applications.

It's still early days, but I have a demo running. Unfortunately, it requires using a drop-in replacement library for CoreLocation. That alone may make it infeasible.

gbro3n•9m ago
https://www.asnotes.io - a Foam / Dendron / Obsidian / Logseq alternative with tasks, kanban board, static site publishing for VS Code

https://www.agentkanban.io - Github Copilot / Claude Code integrated Kanban board with context management

https://www.asmusictheory.com - Music Theory lessons, tools, including piano roll with midi in the web browser

friggeri•9m ago
I’m beta testing a small abstract strategy game I invented and for which I trained an alphazero style AI, https://span.game

I’m making a baby book for my son Henri featuring famous Henri’s through history.

I’m also building a zigbee free/busy eink display that only needs to powered once a year or so

ranger_danger•8m ago
Nothing because I'm terrible at coming up with useful ideas for something that hasn't been done a million times over.

C++/python/networking/systems/web developer for 30 years with plenty of free time

nashadelic•7m ago
Compiled agents: http://squig.com/

It takes your instructions, write a versioned spec, then generates a hybrid workflow of code+LLM calls and protects it with tests/evals

The result is that the agents run much faster (90% of it is code), cheaper (LLM steps are scoped tightly and uses smaller models) and reliably (specs get turned into coded state-machine)

division_by_0•7m ago
trying to upgrade my data viz project [0] from Svelte 5.35.7 (pre async) to the latest version and making sure that the performance is not negatively affected (e.g. [1]).

[0] https://cybernetic.dev

[1] https://github.com/sveltejs/svelte/issues/17176

Closi•7m ago
I'm working on an open source and highly customisable/configurable warehouse management system. The idea is that it will provide a comprehensive and robust base to build on top of so you don't have to reinvent the wheel, with base processes grounded in industry best practice, but as it's open source and the codebase is easy for an LLM to grok users can ask an LLM to tailor it to their business, and then deploy something that perfectly meets their operational requirements.

No link because I'm finalising it at the moment, but if you are interested please drop me a message!

cperciva•7m ago
FreeBSD 15.1! Scheduled to be announced 2026-06-16 00:00 UTC; just need to get some release documentation polished now.
genekrapivin•6m ago
I'm working on Hiring Method. It's a transparent, math-driven fitness engine. It extracts objective data from CVs and calculates how well applicants match requirements, letting you see the reasoning behind why someone scored an X%.

If anyone here builds in the HR space or regularly hires engineers, I would absolutely love your feedback or a roast of the landing page.

PS This is a project of immense importance for me, I've been working on for past ~2 years, I'd appreciate to know why this comment is flagged.

jason_zig•6m ago
seeing how far 1 person project can go with Zigpoll: https://www.zigpoll.com

Crossed over 100K MRR and I'm shooting for 2M ARR by the end of the year. Growing something in this stage is totally different from making it go from zero to one so it's an interesting learning curve. AI has also changed the calculus as well where it seems less crazy to try and do this sort of thing. Time will tell!

ccvannorman•5m ago
MathBreakers, Your Limitless Math Universe. It's a math game platform teaching fundamental grade school concepts like Fractions in an immersive 3D world with virtual manipulatives (no equations or worksheets).

Re-reading the Lean Startup to hone our GTM, market validation and growth engine.

(mathbreakers.com)

TheAceOfHearts•5m ago
I've been thinking a lot about soul cultivation as a concept, and the general structure of the soul, and doing a bit of writing on the topic. I feel like this topic is surprisingly under-discussed and under-explored relative to how impactful it is. By soul I mean "the part of you that is an observer", in case this isn't clear. I think a lot of discourse gets caught up with metaphysical speculation instead of focusing on what is there and what is knowable.

Most recently I was also probing people about how they conceptualize of the soul, making my own drawings, and asking others for drawings. If you have a few minutes I would also be interested in seeing how you would draw a soul, given pen and paper or equivalent materials. It often feels like for a lot of people the concept of the soul gets comingled with very confusing definitions.

There's a general problem where certain concepts become so overloaded that just disambiguating and clarifying what is meant becomes a challenge. I will note that if your first thought or question is whether the soul is even real, you might be confused about the definition or we might be referring to different concepts.

nikolasburk•4m ago
https://www.learnchess.ai — The chess app I always wanted (I've tried a lot of apps in the last years but they always lacked some fundamental feature and/or had terrible UX).
mrtrunks•4m ago
Been building a file manager for almost four years that combines the best of Notion and Obsidian while remaining a competent file in the process. It's called Phials.

Not technically released even though the site is live, but close enough to a beta at this point.

https://phials.phoundry.app/