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Show HN: Rhun, an open-source code editor written in assembly

27 points by vladcodes ago | 8 comments
I found that I'm not using even 1/3 of vim/vscode features anymore.

That's wht I'm building rhun - a small code editor for Linux, Windows and Apple silicon Macs. It obviously has Vim mode, a terminal, Git diffs and a panel for Claude Code or Codex sessions.

The editor and pixel renderer share an x86-64 assembly core. For Apple silicon, a build-time translator converts that core to AArch64, with separate platform adapters around it. The latest release can draft commit messages using a local Ollama model or an existing Claude Code or Codex subscription.

It's a solo project, MIT licensed and still early.

browningstreet |next [-]

Assembly plus platform translation, hmmm. I don’t get it but that’s a heck of a thing to do! And yes, I’ll try it.

vladcodes |next |previous [-]

The plan is to add as less new features as possible and keep the same performance/launch time/memory and disk footprint as it is currently.

rgbrgb |next |previous [-]

can you talk about why you do this in assembly?

gespadas |next |previous [-]

People... I just tried it... It is SOOO FAST !!!

slohr |root |parent [-]

absolutely blazing! and it delivers exactly what I've wanted for quick code reviews of the AI output.

bbor |next |previous [-]

…is it fast? Why assembly? Impressive, regardless!

“Super responsive, minimal-by-default” is kinda already met by Sublime Text, but it’s certainly not in assembly lol. And not OSS — thanks for sharing your work with the world :)

heckintime |next |previous [-]

Middle Earth reference?

xorl |previous [-]

This bring me joy :)