John

Building Buninu Linux: A Linux distribution with Bun as PID 1. Mostly JavaScript and WebAssembly.
BUNinu Is Not Unix 🐮
幫你牛 🐂 ・ Bunに入魂 🔥

[John @drxiaozhi]

@Rakel076 @agents 很棒 我也是這樣做的
因為Claude沒有內建背景PTY互動的功能
所以我是真的需要特別跟他說用tmux的

[John @drxiaozhi]

In a sense, yes! Here's the difference:

Rust:
Your app as .rs
Windows: compile → app.exe
Linux: compile → app.elf
JS:
Your app as .js
Windows: bun app.js
Linux: bun app.js

You copy & paste the same source code to another platform with Bun already installed, and it just runs. No compilation needed. Think of Bun as a web browser, but with no limitations on what your JavaScript code can do.

My JavaScript stack shares a Bun binary compiled for each platform. But the Bun binary itself is also not small. So the real benefit becomes more apparent as you run more apps on it.

[John @drxiaozhi]

As a JavaScript developer, I never thought I'd run into this:

***GC STUTTER !!!***

Already hitting 30+ FPS, but still getting occasional stutters.

And now I'm manually managing memory and reinventing Rust-style ownership in JavaScript.

What a crazy world 😂😂😂

[John @drxiaozhi]

@RockySaint6611 Cross-platform compatibility
Running the same apps on Linux, Android, Windows, +/- macOS without recompilation

e.g. Running pure QML/Quickshell apps through my JavaScript runtime, without Qt dependencies.

Eventually, a lightweight desktop environment built mostly in JavaScript!

[John @drxiaozhi]

@ncfrontiersman Fixing performance:
JavaScript Wayland to 30+ FPS

[John @drxiaozhi]

This is huge!
Looking forward to seeing it land!

[Jarred Sumner @jarredsumner]

Bun AOT also introduces `--trim` which deletes unused parts of Bun from the compiled binary

On macOS, a binary that uses Bun.serve’s HTTP server goes from 89 MB to 25 MB

[John @drxiaozhi]

I used to think computer science people cared way too much about a few milliseconds

Now writing my own graphics stack in Bun JavaScript, I finally get it 😂

10ms → 20ms = 100 FPS → 50 FPS

WebGL Aquarium:
13 FPS on my 11 y/o Lenovo U41-70

Wonder if Bun AOT can save me 😅

[John @drxiaozhi]

@oimatrixioYT Switch to Codex and ask him to read Claude's session transcripts.

[John @drxiaozhi]

@aslambeg84 bun build --compile --aot
Types are real.

[John @drxiaozhi]

@RishiiManu That rarely happens right now

[John @drxiaozhi]

@wangzhr4 Wasm?

[John @drxiaozhi]

@object_nullll 可以參考我的專案
我是用 JavaScript 重寫出一個瀏覽器
不需要編譯 可以終端機直接跑
需要支援 Kitty Graphics Protocol
Windows 也能跑
還沒到很完整 但簡單瀏覽沒問題
看YouTube單一影片勉強可行

bunx buninu-browser

[DHH @dhh]

Amazing endorsement of X. This really is where you'll find the most optimistic, forward-looking people in tech.

[John @drxiaozhi]

@nicongdev 有在他贴文底下留言几次
不确定有没有看到
感觉他应该也不是很有兴趣就是了
他主力目标应该还是伺服器和网页

[John @drxiaozhi]

What init system do you use?

systemd? runit? OpenRC?

I use Bun btw.

[John @drxiaozhi]

@jarredsumner I still love Bun.

I've already got Bun running as PID 1.

Now the only things I can't replace with JavaScript are the kernel and libc.

[John @drxiaozhi]

@founder_kai I put Bun at PID 1

[John @drxiaozhi]

@NixFred I'm building a web browser and extending its capabilities this week.
It can now pretend to be QuickShell.
Runs Flea & Omastorm partially now.
Made Dockerfiles for these 2 to run on Android directly.

bunx buninu-browser

Built with Bun JavaScript +/- Wasm

[John @drxiaozhi]

@oimatrixioYT There’s no such thing as a finished project.