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Show HN: A Unix environment in a single HTML file (420 KB)

30 points by sagebird 7mo ago

I built a browser-native Unix environment - shell, filesystem, git, npm, node, vi, 200+ commands. Everything is JavaScript running client-side with IndexedDB for persistence. The whole thing builds to a single static HTML file (~420 KB gzipped). Try it: https://shiro.computer https://shiro.computer For interactive demos showing npm install, node execution, and git workflows -- running live in Shiro, not recordings -- see https://shiro.computer/show https://shiro.computer/show Source: https://github.com/williamsharkey/shiro https://github.com/williamsharkey/shiro P.S. `curl -fsSL https://claude.ai/install.sh https://claude.ai/install.sh | bash` works. You can run real Claude Code and it can use Shiro's tools like a normal Linux system.

richmans 7mo ago
I would not call this a unix environment. It does not run elf binaries. It does not have a kernel. All of the commands are vibecode-reimplementations in typescript.
- cf100clunk 7mo ago
  Yep, the title of the OP is misleading that way.
deleted 7mo ago
[deleted]
reconnecting 7mo ago
> I built a browser-native Unix environment On GitHub, it says Claude built it.
- deleted 7mo ago
  [deleted]
q3k 7mo ago
[flagged]
nerdralph 7mo ago
The gcc stub surprised me: user@shiro:/tmp/hn$ cat main.c #include <stdio.h> int main() { printf("Hello\n"); } user@shiro:/tmp/hn$ cc main.c -o main; ./main Hello, World! user@shiro:/tmp/hn$ cat main #!/bin/sh echo 'Hello, World!'
TekMol 7mo ago
P.S. `curl -fsSL https://claude.ai/install.sh | bash` works. You can run real Claude Code and it can use Shiro's tools like a normal Linux system. Are you sure? I am getting this: user@shiro:~$ curl -fsSL https://claude.ai/install.sh | bash Installing Claude Code... Installing packages globally... Resolved 1 package(s): + @anthropic-ai/claude-code@2.1.45 22 files extracted Created 1 bin symlink(s) in /usr/local/bin Packages installed globally. Claude Code installed successfully! Run: claude user@shiro:~$ claude Now I get what looks like errors: anonymous/q2<@https://shiro.computer/ line 991 > AsyncFunction:57:43 y/<@https://shiro.computer/ line 991 > AsyncFunction:9:688 ...and some more like this... And then I am back on the normal command line.
dTal 7mo ago
gcc seems to be a funny stub that generates an "executable" that prints "Hello, World!" if the input file fuzzy-matches a hello world, and otherwise prints nothing. Seems to be a few simple regexes: to "compile" you need a "main(" with either int or void before, and to trigger the hello world behavior you need printf( and a "hello" inside quotes. But that seems to be it: void main( //printf(" hello"

30 points by sagebird 7mo ago

richmans 7mo ago

I would not call this a unix environment. It does not run elf binaries. It does not have a kernel. All of the commands are vibecode-reimplementations in typescript.

cf100clunk 7mo ago
Yep, the title of the OP is misleading that way.

deleted 7mo ago

[deleted]

reconnecting 7mo ago

> I built a browser-native Unix environment On GitHub, it says Claude built it.

deleted 7mo ago
[deleted]

q3k 7mo ago

[flagged]

nerdralph 7mo ago

The gcc stub surprised me: user@shiro:/tmp/hn$ cat main.c #include <stdio.h> int main() { printf("Hello\n"); } user@shiro:/tmp/hn$ cc main.c -o main; ./main Hello, World! user@shiro:/tmp/hn$ cat main #!/bin/sh echo 'Hello, World!'

TekMol 7mo ago

P.S. `curl -fsSL https://claude.ai/install.sh | bash` works. You can run real Claude Code and it can use Shiro's tools like a normal Linux system. Are you sure? I am getting this: user@shiro:~$ curl -fsSL https://claude.ai/install.sh | bash Installing Claude Code... Installing packages globally... Resolved 1 package(s): + @anthropic-ai/claude-code@2.1.45 22 files extracted Created 1 bin symlink(s) in /usr/local/bin Packages installed globally. Claude Code installed successfully! Run: claude user@shiro:~$ claude Now I get what looks like errors: anonymous/q2<@https://shiro.computer/ line 991 > AsyncFunction:57:43 y/<@https://shiro.computer/ line 991 > AsyncFunction:9:688 ...and some more like this... And then I am back on the normal command line.

dTal 7mo ago

gcc seems to be a funny stub that generates an "executable" that prints "Hello, World!" if the input file fuzzy-matches a hello world, and otherwise prints nothing. Seems to be a few simple regexes: to "compile" you need a "main(" with either int or void before, and to trigger the hello world behavior you need printf( and a "hello" inside quotes. But that seems to be it: void main( //printf(" hello"