Rhun, an open-source code editor written in assembly
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111 other launches read as similar to this one →
Details
- External ID
- 49926726
- Source
- HN
- Company
- —
- Product
- Rhun, an open-source code editor written in assembly
- Website domain
- rhun.app
- Launched
- Oct. 1, 2026
- Cohort
- —
- Upvotes
- 31
- Upvotes percentile
- 0.9117647058823529
- Tags
- —
- Fetched at
- Oct. 2, 2026, 1:01 a.m.
- Updated at
- Oct. 2, 2026, 1:01 a.m.
Description
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.
Enrichment
- Theme
- Claude Code tooling and automation
- Vertical
- Horizontal
- Function
- Dev tools
- Audience
- Developer
- AI stance
- Not AI
- Project type
- Hobby / open-source project
- Normalized one-liner
- open-source code editor written in assembly
- Manually corrected
- False
Could you build this?
No Writing a full cross-platform code editor with a custom pixel renderer, terminal emulator, and syntax highlighting entirely in x86-64 assembly requires deep systems programming, low-level OS API mastery, and computer architecture expertise.
What it would actually take: Developing Rhun requires writing pure assembly (NASM/fasm) interfacing directly with platform APIs (Win32, Linux syscalls, macOS Mach-O/Cocoa bridges via assembly shims). The builder must manually implement memory allocation, a custom software/GPU pixel rasterizer, text buffer data structures (rope/piece table), syntax lexers, PTY terminal multiplexing, and Git wire protocols without standard high-level libraries.
Discussion
13 comments analyzed.
Competitors mentioned: Zed, Sublime Text
Concerns raised: Website looks like AI slop, Writing in assembly may be unnecessary
Competitors
Other products that read as similar to this one — 111 launches clear the similarity bar, closest 8 shown.
Attention rank: #20 of 112 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 318 days after the earliest competitor.
- rhun · ph · 2026-10-01 · 58 upvotes · similarity 0.81
- Epho · ph · 2026-08-21 · 156 upvotes · similarity 0.45
- 1Code · hn · 2026-01-15 · 75 upvotes · similarity 0.42
- Fermata · ph · 2026-09-30 · 2 upvotes · similarity 0.41
- STM32_VSCode_Setup · github · 2026-09-11 · 15 upvotes · similarity 0.41
- Lima-devbox · hn · 2026-01-22 · 5 upvotes · similarity 0.41
- Vireo - Simple Markdown Editor for MacOS · ph · 2026-09-22 · 9 upvotes · similarity 0.40
- Brig · hn · 2026-09-22 · 9 upvotes · similarity 0.39
Other launches for this product
- No other launches for this product.
Same idea, different domain
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