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Show HN: Visual Lambda Calculus – a thesis project (2008) revived for the web

https://github.com/bntre/visual-lambda
2•bntr•3m ago•1 comments

Leveraging AI for Self-Learning

https://techne98.com/blog/can-we-use-ai-for-self-learning/
1•fixedprog•5m ago•0 comments

The Bespoke Flywheel

https://linghao.io/posts/bespoke-flywheel
1•instante_42•10m ago•0 comments

How do I cancel my ChatGPT subscription?

https://help.openai.com/en/articles/7232927-how-do-i-cancel-my-chatgpt-subscription
3•tobr•12m ago•0 comments

Graph Representations: Rectangles and Squares [pdf]

https://page.math.tu-berlin.de/~felsner/Paper/geom-rep.pdf
1•downboots•16m ago•0 comments

Californian pulls AI ballot measures, citing OpenAI intimidation

https://www.politico.com/news/2026/02/27/californian-pulls-ai-ballot-measures-citing-openai-intim...
3•hliyan•19m ago•0 comments

Rust Is Just a Tool

https://lewiscampbell.tech/blog/260204.html
3•JuniperMesos•19m ago•0 comments

Why LLMs can't play chess

https://www.nicowesterdale.com/blog/why-llms-cant-play-chess
3•prophylaxis•21m ago•1 comments

NATO says iPhones are secure enough to handle classified data

https://www.theverge.com/tech/885516/nato-iphones-ipads-restricted-classified-information
2•Qadriq•25m ago•0 comments

There's an enormous void of nothingness in our Universe

https://www.skyatnightmagazine.com/space-science/bootes-void
2•thunderbong•27m ago•0 comments

Show HN: AusOverwatch – Real-time geospatial intelligence for Australia

https://ausoverwatch.com
2•kangablue•31m ago•0 comments

Agentic Engineering Starter Pack

https://github.com/tngwilkins/agentic-engineering-starter-pack
1•tngw•35m ago•0 comments

SAP's New Bonus System Rewarded Underperforming Bosses

https://www.bloomberg.com/news/articles/2026-02-27/sap-s-new-bonus-system-ended-up-rewarding-unde...
1•alexgotoi•40m ago•0 comments

Waterfall Used, 1991 – Department of Defense: Capabilities Maturity Model (O-25) [pdf]

https://apps.dtic.mil/sti/tr/pdf/ADA240604.pdf
1•khelavastr•41m ago•1 comments

Cash Issuing Terminals

https://computer.rip/2026-02-27-ibm-atm.html
7•zdw•46m ago•0 comments

Show HN: Jaypore CI. Minimal offline CI system

1•theSage•47m ago•0 comments

An interactive version of Xkcd 2347, the dependency comic

https://nesbitt.io/xkcd-2347/
2•zdw•47m ago•1 comments

Disable Your SSH access accidentally with scp

https://sny.sh/hypha/blog/scp
1•zdw•49m ago•0 comments

Palantir Sues Magazine for Reporting That the Government Didn't Want Palantir

https://www.techdirt.com/2026/02/27/palantir-sues-swiss-magazine-for-accurately-reporting-that-th...
3•Palmik•50m ago•0 comments

Show HN: Grant Project Access Without Forms or Mail Verification

https://autheona.com/
1•lasgawe•51m ago•0 comments

Have We Forgotten How to Design?

https://lmnt.me/blog/have-we-forgotten-how-to-design.html
1•zdw•54m ago•1 comments

Genode OS Framework 26.02

https://genode.org/documentation/release-notes/26.02
1•snvzz•56m ago•0 comments

Show HN: Vigil – Zero-dependency safety guardrails for AI agent tool calls

2•HexitLabs•57m ago•1 comments

Show HN: Wardrowbe – I kept staring at a full closet with nothing to wear

https://github.com/Anyesh/wardrowbe
1•rabbi7•58m ago•0 comments

Blocks apps on your phone by scanning a QR Code

https://apps.apple.com/us/app/offkit-app-blocker/id6758268708
1•nickfthedev•59m ago•0 comments

Extend a Python-Like Language into Your Own Type-Safe DSL

https://tapl-lang.org/
1•orti•1h ago•0 comments

Ventuals: Pre-IPO Stocks on Hyperliquid

https://app.ventuals.com/markets
1•andxor•1h ago•0 comments

Masakhane

https://www.masakhane.io/
1•pizza•1h ago•0 comments

Show HN: Magicreader – shorten and simplify web articles in-place

https://magicreader.com/demo
1•mzelling•1h ago•0 comments

The Radical Font

https://terathon.com/blog/radical-font.html
1•tzury•1h ago•0 comments
Open in hackernews

Show HN: Dexter – an opinionated day planner for Mac

https://dexterplanner.com/
17•cvburgess•9mo 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•9mo ago
Sorry to hear about the inspiration for this. It's very nicely done. Great work.
cvburgess•9mo ago
Thank you so much <3
DevDad_io•9mo ago
Very clean UI, well done!
cvburgess•9mo 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•9mo 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•9mo 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•9mo 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.