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Falsehoods programmers believe about addresses (2013)

https://www.mjt.me.uk/posts/falsehoods-programmers-believe-about-addresses/
1•smagin•56s ago•1 comments

Prompt-caching – auto-injects Anthropic cache breakpoints (90% token savings)

https://prompt-caching.ai/
2•ermis•2m ago•1 comments

I'm a project manager, to the engineers: how replaceable do you think my job is?

1•ferociousmadman•3m ago•0 comments

Parametricity, or Comptime Is Bonkers

https://noelwelsh.com/posts/comptime-is-bonkers/
1•birdculture•3m ago•0 comments

Show HN: Bonsai – A tiny sandboxed expression engine for TypeScript

https://danfry1.github.io/bonsai-js/
1•danfry•4m ago•0 comments

Evolving our real-time timeseries storage again: Built in Rust (2025)

https://www.datadoghq.com/blog/engineering/rust-timeseries-engine/
1•l2dy•5m ago•0 comments

Western AI models "fail spectacularly" in farms abroad

https://restofworld.org/2026/ai-agriculture-local-data/
2•HR01•5m ago•0 comments

Elusive Cost Savings of Pre-fabricated homes

https://www.construction-physics.com/p/the-elusive-cost-savings-of-the-prefabricated
1•HR01•8m ago•0 comments

Why yes, you *can* agentically code wherever you SSH

https://ivoras.substack.com/p/why-yes-you-can-agentically-code
1•taubek•8m ago•0 comments

Social media is an ant mill

https://www.youtube.com/watch?v=3J_obzqM5K0
1•frag•8m ago•0 comments

If you can't trust AI with a credit card, just give it a prepaid card

https://agentcard.sh/
1•haebom•8m ago•1 comments

The Road Runner Economy

https://nraford7.github.io/road-runner-economy/
1•markusw•10m ago•0 comments

Researchers have demonstrated magnetic particle imaging on humans

https://www.uni-wuerzburg.de/en/news-and-events/news/detail/news/mpi-humans/
1•giuliomagnifico•10m ago•0 comments

Iran Drone War Ode Model

https://policytensor.substack.com/p/why-the-us-is-facing-strategic-defeat
1•harperlee•12m ago•0 comments

My Claude Code Setup

https://freek.dev/3026-my-claude-code-setup
1•speckx•13m ago•1 comments

Show HN: RAG Doctor – CLI tool to diagnose broken RAG pipelines

https://ragdoctor.dev/
1•anvarxadja•14m ago•1 comments

Web Rewind

https://www.web-rewind.com/
1•thunderbong•15m ago•0 comments

Microsoft Hasn't Had a Coherent GUI Strategy Since Petzold

https://www.jsnover.com/blog/2026/03/13/microsoft-hasnt-had-a-coherent-gui-strategy-since-petzold/
2•mpweiher•17m ago•0 comments

From Run Nation to Power Slap: New Sports Designed for Social Media

https://www.theguardian.com/sport/2026/mar/13/run-nation-power-slap-carjitsu-tgl-golf-typti-sport...
1•yk•18m ago•1 comments

Stanag 5516M-STD-6016 TADIL-J J-Series schema reconstruction from public docs

https://liotier.github.io/Ersatz-MIL-STD-6016/
1•liotier•19m ago•0 comments

Want to Win a New CanaKit Raspberry Pi 5 Starter Kit Pro?

1•pgedge_postgres•21m ago•0 comments

Prompt engineering vs. context engineering: a practical guide for AI builders

https://memgraph.com/blog/prompt-engineering-vs-context-engineering
1•taubek•21m ago•0 comments

Solder Ninja Pen: USB-powered soldering iron compatible with Weller RT tips

https://www.crowdsupply.com/sitron-labs/solder-ninja-pen
2•oxplot•28m ago•0 comments

OSS Document Scanner

https://www.akylas.fr/OSS-DocumentScanner/
1•farfromrefuge•31m ago•1 comments

Show HN: Line, Language with Intuitive and Natural Expression

https://github.com/Qc-17/LINE
1•Qc17•31m ago•1 comments

40 Years of Wireless Evolution Leads to a Smart, Sensing Network

https://spectrum.ieee.org/telecom-history-1g-to-6g
2•canarymark•33m ago•0 comments

Analysis → Implementation → Reflection – a practical technique for agentic AI

https://blog.scottlogic.com/2026/03/05/analysis-implementation-reflection-practical-techniques.html
1•ColinEberhardt•34m ago•0 comments

Phoenix Arizona is likely to see its earliest 100f(38c) day on record, in March

https://www.cnn.com/2026/03/12/weather/record-heat-west-eastern-cold-whiplash
3•b33f•35m ago•0 comments

Automating the Ticket-to-PR Cycle for Power Platform Code Apps with Azure DevOps

https://agent22.sh/blog/automating-power-platform-code-app-development-with-agent22/
1•cubixle•35m ago•0 comments

Hacking the Job Interview

https://xdg.me/hacking-the-job-interview/
2•ZacnyLos•37m ago•0 comments
Open in hackernews

Show HN: Dexter – an opinionated day planner for Mac

https://dexterplanner.com/
17•cvburgess•10mo 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•10mo ago
Sorry to hear about the inspiration for this. It's very nicely done. Great work.
cvburgess•10mo ago
Thank you so much <3
DevDad_io•10mo ago
Very clean UI, well done!
cvburgess•10mo 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•10mo 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•10mo 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•10mo 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.