picoruby/picoruby
PicoRuby is the smallest Ruby implementation for one-chip microcontrollers observed · 2026-10-19
Health v2 · maintenance only
95/100
- Activity 100
- Release rhythm 85
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-10-21. Adoption (stars, forks) is never an input.
- gap_med: 32
- age_days: 2467
- days_rel: 21
- days_push: 2
- n_releases_24m: 4
Adoption not part of the score
1107 stars · 73 forks observed · 2026-10-19
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
PicoRuby is a compact alternative implementation of the Ruby language (based on mruby and mruby/c VMs) designed to run on one-chip microcontrollers with as little as 128 KB of RAM. It is written in portable C and powers projects like PRK keyboard firmware, R2P2 shell systems, and a WebAssembly runtime.
Use cases
- run ruby scripts on a raspberry pi pico
- write keyboard firmware in ruby
- embed a small scripting language in a microcontroller project
- build an esp32 application scripted with ruby
- run ruby in the browser via webassembly
- prototype embedded iot devices with a high-level language
When to choose
- you want to program microcontrollers like the Raspberry Pi Pico or ESP32 in Ruby
- you need a very small scripting VM with RAM under 512 KB
- you are building PRK Firmware-based keyboards or R2P2 shells
- you want portable C code that runs on bare metal or WASI
When to avoid
- you need full CRuby compatibility or gems from the standard Ruby ecosystem
- your target has abundant resources where standard mruby or CRuby suffices
- you need maximum real-time performance from hand-tuned C
- you are not comfortable building from source with a C toolchain
Facets
library · maturity active
interpreter programming-language embedded embedded-systems programming-languages hardware iot embedded cross-platform wasm cli ruby mruby microcontroller vm raspberry-pi-pico esp32 keyboard-firmware
1 source
- readme: https://github.com/picoruby/picoruby · fetched 2026-10-19 · f63301796033
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| picoruby/picoruby | main | 95 |
For agents
markdown · JSON · MCP: product_card(name="picoruby/picoruby")
Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem