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A Theory of Arrays (ToA) Union Find

https://www.philipzucker.com/toa_unionfind/
1•g0xA52A2A•7m ago•0 comments

Web-based cryptography is always snake oil

https://www.devever.net/~hl/webcrypto
1•enz•7m ago•0 comments

Knowledge Should Not Be Gated

https://www.formaly.io/blog/knowledge-should-not-be-gated
1•nezhar•9m ago•0 comments

India seeks to quell public backlash on ethanol-mixed fuel

https://www.reuters.com/world/india/india-seeks-quell-public-backlash-ethanol-mixed-fuel-after-ex...
1•JumpCrisscross•15m ago•0 comments

SigMap: 97% token reduction for AI coding sessions

https://sigmap.io/
3•handfuloflight•16m ago•0 comments

Notaru

https://notaru.org/
1•handfuloflight•19m ago•0 comments

Show HN: I trained a language model that thinks the capital of Japan is Paris

https://hamiltonianresearch.xyz/blog/hr-diffuse-1.html
3•farisallafi•21m ago•0 comments

code-on-incus: Give each AI agent its own isolated machine with root

https://github.com/mensfeld/code-on-incus
1•Tomte•26m ago•0 comments

Programmers need to start meditating now

https://jacob.gold/posts/programmers-need-to-start-meditating-now/
2•enz•29m ago•0 comments

NirCmd – Windows command line tool

https://www.nirsoft.net/~nirsoft/utils/nircmd.html
1•thunderbong•37m ago•0 comments

Paul Pelosi in hit-and-run in Napa County wine country, police say

https://www.sfgate.com/news/politics/article/paul-pelosi-in-hit-and-run-in-napa-county-wine-22332...
1•turtlegrids•38m ago•0 comments

BESS deployment to escalate as lenders see the light

https://tamarindo.global/insight/analysis/bess-deployment-to-escalate-as-lenders-see-the-light/
1•zeristor•38m ago•0 comments

Fast Software, the Best Software

https://craigmod.com/essays/fast_software/
1•ustad•43m ago•0 comments

Electronic Engineers Master Catalog

https://archive.org/details/electronicengine00unse_8
1•ustad•45m ago•0 comments

Reducing Assumptions, Exploding Your Code

https://ryelang.org/blog/posts/reducing_assumptions_but_exploding/
2•mpweiher•47m ago•0 comments

Dark Mode with Web Standards

https://olliewilliams.xyz/blog/dark-mode/
2•thm•51m ago•0 comments

Splitzen – Split group expenses with one link, no sign-up

https://getsplitzen.vercel.app
1•piprads•52m ago•0 comments

Authors Sue Anthropic for $75M

https://theguptalog.blogspot.com/2026/07/100-authors-sue-anthropic-for-75m.html
1•guptalog•53m ago•0 comments

Show HN: WakaWiki, a CLI that maintains agent documentation for your codebase

https://github.com/sonyarianto/wakawiki
1•sonyarianto•53m ago•0 comments

Meta's Brain2Qwerty v2: A non-invasive brain-computer interface

https://facebookresearch.github.io/brain2qwerty/
2•mgh2•53m ago•0 comments

Codex Threads

https://github.com/kcosr/codex-threads
1•handfuloflight•58m ago•0 comments

New Android security setting spots bad networks and fake cell towers

https://www.zdnet.com/article/android-security-setting-spots-bad-networks-and-fake-cell-towers-ho...
2•tlhunter•59m ago•0 comments

Will co-located solar and BESS be the main driver of Europe's energy transition?

https://tamarindo.global/insight/analysis/will-co-located-solar-bess-be-the-main-driver-of-europe...
1•zeristor•1h ago•0 comments

Hunch – a Git-native decision graph your AI assistant obeys

https://hunch-pi.vercel.app
1•huchdave•1h ago•0 comments

Mysterious debris could be 'space balls'– may contain toxic rocket fuel

https://www.theguardian.com/australia-news/2026/jul/05/mysterious-debris-found-on-queensland-beac...
6•defrost•1h ago•0 comments

Nuclear Startups Hit a Big Milestone. Why It Matters–and Why It Doesn't

https://www.wired.com/story/nuclear-startups-hit-milestone-why-it-matters/
4•joozio•1h ago•0 comments

Agentsnap – find which config change broke your AI agent

https://drive.google.com/file/d/1oPTmOOkBtE0IRV4oy0K4NuuLxYBezXRc/view?usp=sharing
1•Gladi•1h ago•0 comments

Light Painting Tutorial, How to Light Paint a Light Man(2016)

https://lightpaintingphotography.com/light-painting-photography/light-painting-tutorial-how-to-li...
1•hopelessluca•1h ago•0 comments

GetSuperpower, an installable skill tree for coding agents

https://github.com/0xroylee/getsuperpower
2•1997roylee•1h ago•0 comments

'It's whack-a-mole': how Europe's smart border melted down

https://www.ft.com/content/3ed70f64-7443-4241-ac0f-38eabe218913
4•thm•1h ago•1 comments
Open in hackernews

Show HN: Dexter – an opinionated day planner for Mac

https://dexterplanner.com/
17•cvburgess•1y ago
Hey HN, Dexter is a day planner I built for Mac (and web).

This was a grief project. Some people make art when they're soul searching, and making apps has always been a bit of an artistic outlet for me. Earlier this year my mother committed suicide and two weeks later the company I worked for laid off my entire division. After taking some time to grieve and process I started building something just for me, just for fun, just because I wanted to.

Dexter has been a slow project that started as paper sketches at my kitchen table and slowly morphed into a codebase. It allowed me to play with tools I wanted to get better at like Postgres and Typescript while also letting me try (and in some cases fail) experimenting with new-to-me tools like Tailwind, Supabase, Tauri, Electron, and Vite.

Small portions of the app and site were "vibe coded", but 99% is hand-crafted code (not necessarily good code), graphics, and data models. This was meant to be a fun project where I learned things just because I wanted to learn something, not a race to see how fast I could grind out a product.

For an example of "unnecessary but fun", I made each SVG on the marketing site twice with Figma - once in a light theme and again in a dark theme - so if you toggle your OS's dark mode, everything should change, even the images.

A few things about the app:

- Yeah, I know, it's an Electron app. I tried using Tauri and other tools but hit a few snags. The Electron ecosystem was incredibly mature and easy to use in comparison

- The app is open source [0] and so is the marketing site [1]

- Some friends and I have been using it daily for a few months and really enjoy it compared to our old multi-tool workflows

- Dexter is the name of my 12(?) year old husky, hence the dog branding

- There is a pricing widget on the marketing site but the app is currently totally free. I might integrate Stripe soon if (and only if) that feels like a fun project, but the goal isn't to get rich or even turn a profit, it's to have fun and build something genuinely useful that I use every day

There are a bunch of features I would love to add and enhancements I would like to make, and eventually I will. Currently, I pick up a feature just because it sounds fun that day and I put it down when it is no longer fun. It might not be a good business model, but it has been a wonderful antidote to an industry rife with burnout and a personal life that's been a little out of control.

I hope you enjoy it and maybe build something for yourself, just because it sounds fun.

If anyone gives it a try I will be in the comments today and happy to answer any questions!

[0] https://github.com/cvburgess/dexter-app

[1] https://github.com/cvburgess/dexter-www

Comments

saltcod•1y ago
Sorry to hear about the inspiration for this. It's very nicely done. Great work.
cvburgess•1y ago
Thank you so much <3
DevDad_io•1y ago
Very clean UI, well done!
cvburgess•1y ago
Thank you!

I got to dust off some old UX skills that haven't been used in a few years.

Huge shoutout to DaisyUI [0] and tailwind for making it really easy to build pretty things.

[0] https://daisyui.com/

DevDad_io•1y ago
Ha! Daisy and Tailwind are so wonderful, I used the same for my app. I especially like the multidirectional scrolling on your app.
cvburgess•1y ago
Scrolling has been the bane of my existence lol.

Im pretty happy with it currently, but want to fix a small annoyance where columns can "hijack" horizontal scrolling.

I learned SO MUCH about CSS tools of old and new doing this project. The popover API and anchor positioning in particular was a bit of a beast, as were overflows and scroll areas.

Most of my background has been in native or react-native mobile development where these kinds of issues don't really exist in the same way.

Going back to basics with html + css was humbling and taught me a lot, too.

osener•1y ago
I came across this randomly when I searched "Figma" on HN, and I'm very glad I did. Tastefully done app -- wishing you all luck in the world.