Chris Hasinski
@khasinski

Ruby and AI/ML developer, conference speaker, from time to time video game journalist. Currently adding ray tracing to 1990's video games for fun!

Joined July 2011
26 Photos and videos
I've got a new toy, should make a port of #ruby #doom?
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I'm experimenting with dynamically compiling individual #ruby methods with #spinel. Here is a hastily coded PoC for this: github.com/khasinski/spinel_… I've managed to get 31x speed improvement in Doom FPS by compiling just the hot loop.

GitHub - khasinski/spinel_native: Compile individual Ruby methods to native code with the Spinel...

Compile individual Ruby methods to native code with the Spinel AOT compiler, from inside CRuby - khasinski/spinel_native

github.com
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Not a great experience installing #omarchy on my MBP16" 2019. Keyboard and trackpad required some workarounds (including a PR to systemd), GPU switching also seems to be broken. It is however gorgeous and agents can hopefully fix everything!
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#ruby #doom now supports hardware accelerated rasterizer rendeing and ray tracing
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#ps1 emulation in #ruby has a really weird performance profile
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#ruby #ps1 emulator now runs more games (badly!😉)
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Ruby Doom just got multiplayer
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Chris Hasinski retweeted
Justin Bowen
@TonsOfFun111
Jun 16
I have availability for Rails/AI work! Hit me up or let me know if you know anyone who could use my expertise.
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Chris Hasinski retweeted
mrubyc-dev-jp@mrubyc_dev_jp
Jun 12
mruby/c 4.0.0 出しました。 github.com/mrubyc/mrubyc/rel… mruby4のバイトコードに対応したほか、パターンマッチに対応、UTF-8対応など機能強化しています。

Release release4.0.0 · mrubyc/mrubyc

What's Changed Migrated supported RITE version to 0400 Implemented new opcodes added in the mruby 4 series: OP_TDEF, OP_SSEND0, OP_SEND0, OP_RETSELF, OP_RETNIL, OP_RETTRUE, OP_RETFALSE, OP_SD...

github.com
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#ruby #psx now runs more games
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I'm revisiting a project I've started and dropped a while ago :)
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Finally got the water transparency working, although with a few bugs to figure out. Also I've published Quake to #rubygems, so `gem install quake-rb && quake`.
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Chris Hasinski retweeted
Marco Roth
@marcoroth_
May 7
Really exciting to see Herb being adopted at GitHub! 🌿 Over the past months, the GitHub team has been running Herb across one of the largest Rails codebases out there where Herb helped uncover real issues missed by existing tooling while also providing invaluable feedback. 🙌
Joel's blogpost titled "Adopting Herb at GitHub" https://hawksley.org/2026/05/06/adopting-herb-at-github.html

ALT Joel's blogpost titled "Adopting Herb at GitHub" https://hawksley.org/2026/05/06/adopting-herb-at-github.html

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Chris Hasinski retweeted
monochrome
@s_isshiki1969
Apr 25
doom started running on monoruby...
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Chris Hasinski retweeted
Stmn, Inc. Developers@stmn_eng
Apr 23
＼ 💎 #rubykaigi 2026 Day3 ／ いよいよ最終日となりました！ 日替わりのコードクイズを準備してお待ちしてます 午後になると景品なくなってしまうかもしれません😢 お早めにお越しいただければと思います🙇 ぜひ、お立ち寄りください 引き続きブースでお待ちしています！ #TUNAG #RubyKaigi2026
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Chris Hasinski retweeted
Benoit Daloze@eregontp
Apr 23
TruffleRuby is running Doom at 150 FPS! In @khasinski #RubyKaigi talk "From C to Ruby: Porting Doom"
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#rubykaigi 👀
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Chris Hasinski retweeted
Rhiannon Payne 🌙 麗奈
@rhiannon_io
Apr 1
#RubyKaigi のみなさんへ — カンファレンスで @adrianthedev さんの Ruby Passports 配布をお手伝いします！ どれくらいの日本のRubyistのみなさん、または海外参加者のみなさんが欲しいか、少し把握できたらうれしいです。今のところ50冊用意していますが、必要そうならもっと持っていけます。 🥰🌸
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Chris Hasinski retweeted
Justyna Wojtczak@justi84
Mar 28
Claude Code + images is still broken — crashes on transparency, large PNGs, and kills the whole session. Last night I shipped a hook that proxies image reads through a Haiku subprocess. Zero image data touches your main context. gist.github.com/justi/8265b8…

Claude Code hook: safe image read with subprocess proxy — unlimited images per session, auto-cont...

Claude Code hook: safe image read with subprocess proxy — unlimited images per session, auto-context from transcript, prompt injection resistant - README.md

gist.github.com
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Just got my #rubykaigi demo hardware ;)
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