# vygr/ChrysaLisp

Parallel OS, with GUI, Terminal, OO Assembler, Class libraries, C-Script compiler, Lisp interpreter and more...

Repository: https://github.com/vygr/ChrysaLisp
Canonical: https://ross.abutalabs.com/products/chrysalisp
Language: C++
License: GPL-2.0
License Family: copyleft
Topics: os, lisp, assembly, vm, gui, osx, linux, x86-64, aarch64, raspberry-pi-3
Last push: 2026-08-26T13:23:33+00:00

## Health v2 (maintenance only)
Score: 98/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 96, longevity 100
- inputs: {"age_days": 4223, "days_push": 7, "days_rel": 28, "gap_med": 23, "n_releases_24m": 20}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1691, forks 104 (observed 2026-08-28T04:05:22.671129+00:00)

## What it is
ChrysaLisp is a 64-bit parallel operating system environment featuring a virtual processor, GUI, terminal, OO assembler, C-Script compiler, and Lisp interpreter. It is self-hosting and portable across x64, ARM64, and RISC-V64 platforms.

## Use cases
- run a parallel operating system on linux or mac
- learn lisp in a self-contained os environment
- experiment with a virtual processor and oo assembler
- build a distributed parallel computing environment
- run a lightweight gui os on a raspberry pi
- explore os internals with an integrated debugger and profiler

## When to choose
- you want a self-hosting OS with its own toolchain and Lisp environment
- you need a portable virtual processor target across x64, ARM64, and RISC-V64
- you want to study parallel and distributed OS design
- you want to run a GUI environment on a Raspberry Pi in framebuffer mode

## When to avoid
- you need a production OS for daily workloads
- you require bare-metal boot support today
- you need a large ecosystem of third-party applications
- you want POSIX compatibility with existing Unix software

## Facets
- artifact type: application
- maturity: active
- function: interpreter, compiler, gui, cli, graphics, programming-language, developer-tools
- domain: operating-systems, programming-languages, developer-tools, cross-platform
- platform: windows, cpp, cross-platform
- tags: operating-system, lisp, virtual-processor, parallel-computing, self-hosting, assembler, raspberry-pi, mimd, linux, macos

## Member repositories
- vygr/ChrysaLisp (main) score 98

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:22.671129+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:38:17.442470+00:00, confidence not recorded.
  - readme: https://github.com/vygr/ChrysaLisp (fetched 2026-08-28T04:05:22.671129+00:00, sha 67cab89f7243)
- Data as of 2026-08-30T08:39:29.467469+00:00.