# marciok/Mu

It's a Swift playground explaining how to create a tiny programming language named Mu

Repository: https://github.com/marciok/Mu
Canonical: https://ross.abutalabs.com/products/marciok-mu
Language: Swift
License Family: other
Last push: 2020-02-06T11:33:34+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 3586, "days_push": 2400, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1046, forks 40 (observed 2026-08-28T04:03:21.846584+00:00)

## What it is
A Swift playground that teaches how to build a tiny programming language called Mu through a lexer, parser, and interpreter. It is an educational tutorial rather than production software.

## Use cases
- learn how to write a lexer
- understand how parsers work
- build a tiny programming language
- learn interpreter basics
- teach compiler fundamentals with Swift

## When to choose
- you want a hands-on tutorial on language implementation in Swift
- you are learning lexer/parser/interpreter basics
- you prefer learning inside a Swift playground

## When to avoid
- you need a production-ready language or toolchain
- you need a maintained library with a license
- you work outside Swift or Apple platforms

## Facets
- artifact type: learning-resource
- maturity: maintenance
- function: parser, interpreter, programming-language, developer-tools
- domain: programming-languages, parsers, tutorials, education
- platform: -
- tags: swift-playground, lexer, compiler-tutorial, toy-language, swift, macos

## Member repositories
- marciok/Mu (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:21.846584+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 2026-08-30T07:01:58.278788+00:00, confidence not recorded.
  - readme: https://github.com/marciok/Mu (fetched 2026-08-28T04:03:21.846584+00:00, sha 68b08b688b7c)
- Data as of 2026-08-30T08:39:29.467469+00:00.