Ross ROSS = Recommend OSS · open-source software intelligence for agents

haileys/jsos

An operating system written in JavaScript observed · 2026-08-28

github.com/haileys/jsos · C observed · 2026-08-28

Health v2 · maintenance only

32/100

  • Activity 0
  • Release rhythm 35
  • Longevity 100

Flags: no_releases no_license

How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.

  • gap_med: n/a
  • age_days: 5318
  • days_rel: n/a
  • days_push: 856
  • n_releases_24m: 0

Full methodology

Adoption not part of the score

1038 stars · 150 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

JSOS is a hobby operating system whose kernel, C library, compiler, and JavaScript virtual machine are written largely in JavaScript, with C components. It is an experimental OS development project demonstrating JavaScript as a systems language.

Use cases

  • run an operating system written in javascript
  • study how to build a javascript vm for a kernel
  • learn os development with a javascript userspace
  • explore hobby operating system source code
  • boot a minimal OS with a javascript interpreter

When to choose

  • you want to study or hack on an unconventional JavaScript-based OS
  • you are learning OS development and want a small readable codebase
  • you need a JavaScript VM running bare-metal as a reference

When to avoid

  • you need a production-ready operating system
  • you require a permissive license for all components without review
  • you need modern hardware support, drivers, or active development

Facets

application · maturity maintenance

interpreter compiler programming-language operating-systems programming-languages developer-tools cpp c cross-platform operating-system javascript-vm osdev hobby-os kernel

1 source

Member repositories

RepositoryRoleHealth v2
haileys/jsosmain32

For agents

markdown · JSON · MCP: product_card(name="haileys/jsos")

Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem