Posting about video games and programminghttps://bsky.app/profile/justinhj.bsky.socialhttps://bsky.app/profile/justinhj.bsky.social/post/3mpcfuxjajk2qI "made" this fun musical toy with AI (Gemini Flash 3.5). You can play with it here https://heyes-jones.com/chromadrift/index.html27 Jun 2026 21:32 +0000at://did:plc:ev4e65i47g6btluk54ivg7nu/app.bsky.feed.post/3mpcfuxjajk2qhttps://bsky.app/profile/justinhj.bsky.social/post/3mivulyitac2ySome nice changes in Neovim 0.12.0. The out-of-the-box experience is growing in capabilities. I spent some time this weekend refreshing my config and wrote up some notes in my blog http://justinhj.github.io/2026/04/06/refreshing-your-neovim-config-for-0-12-0.html07 Apr 2026 13:19 +0000at://did:plc:ev4e65i47g6btluk54ivg7nu/app.bsky.feed.post/3mivulyitac2yhttps://bsky.app/profile/justinhj.bsky.social/post/3mhj4bn6jrc2jWhen to use Zig instead of Rust https://freedium-mirror.cfd/https://medium.com/rustaceans/when-zig-is-safer-and-faster-than-rust-a11bd95bb2be20 Mar 2026 18:07 +0000at://did:plc:ev4e65i47g6btluk54ivg7nu/app.bsky.feed.post/3mhj4bn6jrc2jhttps://bsky.app/profile/justinhj.bsky.social/post/3mcteu75zmk2wBlog post: A deep dive into four different ways to merge sorted runs of data, with interactive guides for each. https://justinhj.github.io/2026/01/19/visualizing-k-way-merge.html20 Jan 2026 05:01 +0000at://did:plc:ev4e65i47g6btluk54ivg7nu/app.bsky.feed.post/3mcteu75zmk2whttps://bsky.app/profile/justinhj.bsky.social/post/3mcdwzepo3k23Type classes for Java https://github.com/openjdk/valhalla/pull/1886 Coming soon Scala style signifiant whitespace 😅14 Jan 2026 01:44 +0000at://did:plc:ev4e65i47g6btluk54ivg7nu/app.bsky.feed.post/3mcdwzepo3k23https://bsky.app/profile/justinhj.bsky.social/post/3matawzrioc2fFerrero Causal Attention Mask so AI can learn what chocolate I will likely eat next25 Dec 2025 17:01 +0000at://did:plc:ev4e65i47g6btluk54ivg7nu/app.bsky.feed.post/3matawzrioc2fhttps://bsky.app/profile/justinhj.bsky.social/post/3maqvi3hiic2cHoliday reading for software engineers [Program Development by Stepwise Refinement - Niklaus Wirth](http://sunnyday.mit.edu/16.355/wirth-refinement.html) [Notes on structured programming - Dijkstra](https://www.cs.utexas.edu/~EWD/transcriptions/EWD02xx/EWD249/EWD249.html) [Abstraction Mechanisms in CLU - Barbara Liskov](https://dl.acm.org/doi/10.1145/359763.359789)24 Dec 2025 18:30 +0000at://did:plc:ev4e65i47g6btluk54ivg7nu/app.bsky.feed.post/3maqvi3hiic2chttps://bsky.app/profile/justinhj.bsky.social/post/3magnxbo2rk2qTo paraphrase the author "It's not just playing Pokemon it's doing science" https://blog.jcz.dev/gemini-3-pro-vs-25-pro-in-pokemon-crystal Cool20 Dec 2025 16:49 +0000at://did:plc:ev4e65i47g6btluk54ivg7nu/app.bsky.feed.post/3magnxbo2rk2qhttps://bsky.app/profile/justinhj.bsky.social/post/3maenudv6722fNice intro to where algebraic effects fit into the Scala ecosystem [contains quote post or other embedded content]19 Dec 2025 21:42 +0000at://did:plc:ev4e65i47g6btluk54ivg7nu/app.bsky.feed.post/3maenudv6722fhttps://bsky.app/profile/justinhj.bsky.social/post/3maebssfq622aHey Advent of Coders. I made this visualizer with Gemini. Pretty nice to watch it build the circuits in 3d using three.js. https://heyes-jones.com/circuitbuilder/index.html You can paste in your own code for examples or the input. This is hard coded with my input.19 Dec 2025 18:06 +0000at://did:plc:ev4e65i47g6btluk54ivg7nu/app.bsky.feed.post/3maebssfq622ahttps://bsky.app/profile/justinhj.bsky.social/post/3lv7aebzous2gHappy to share a new blog post! I've been working on a side project to learn more about the tokenization process of LLM's. In the blog post I explore porting Andrej Karpathy's minbpe tokenizer from Python to C++: https://justinhj.github.io/2025/07/30/journey-in-optimizing-a-bpe-tokenizer.html30 Jul 2025 18:20 +0000at://did:plc:ev4e65i47g6btluk54ivg7nu/app.bsky.feed.post/3lv7aebzous2ghttps://bsky.app/profile/justinhj.bsky.social/post/3lsrfx5bvt22neen working on a fun tool to visualize search algorithms. Written in Zig and uses zig-raylib. https://github.com/justinhj/zigpath29 Jun 2025 19:32 +0000at://did:plc:ev4e65i47g6btluk54ivg7nu/app.bsky.feed.post/3lsrfx5bvt22nhttps://bsky.app/profile/justinhj.bsky.social/post/3lrg7zlbqrs2oWell worth a follow thanks for your posts Kevin [contains quote post or other embedded content]12 Jun 2025 15:22 +0000at://did:plc:ev4e65i47g6btluk54ivg7nu/app.bsky.feed.post/3lrg7zlbqrs2ohttps://bsky.app/profile/justinhj.bsky.social/post/3low65ljtwc2hIs there demand in the Scala world for a book on implementing an effect system? After all we don’t have enough of them 🧐 The Red Book goes some way but much innovation in Cats Effect and Zio would be worth reading about.11 May 2025 19:15 +0000at://did:plc:ev4e65i47g6btluk54ivg7nu/app.bsky.feed.post/3low65ljtwc2h