# mun-lang/mun

Source code for the Mun language and runtime.

Repository: https://github.com/mun-lang/mun
Canonical: https://ross.abutalabs.com/products/mun
Homepage: https://mun-lang.org
Language: Rust
License: NOASSERTION
License Family: other
Topics: rust, gamedev, hot-reloading, language, scripting, embeddable
Last push: 2026-08-17T07:22:42+00:00

## Health v2 (maintenance only)
Score: 67/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 98, release rhythm 8, longevity 100
- inputs: {"age_days": 2600, "days_push": 16, "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 2129, forks 82 (observed 2026-08-28T04:06:17.045061+00:00)

## What it is
Mun is an experimental, statically typed programming language with first-class hot reloading, compiled ahead of time to native machine code via LLVM. This repository contains the language compiler, embeddable runtime, and command-line tooling for compiling, monitoring, and running Mun code.

## Use cases
- embed a hot-reloading scripting language into a game engine
- iterate on game logic without restarting the application
- compile a statically typed scripting language to native code
- prototype real-time applications with fast code changes
- cross-compile scripts to multiple target platforms

## When to choose
- you need hot reloading of functions and data in a live application
- you want Lua-like scripting but with static typing and AOT performance
- you are building a game or real-time app that embeds a runtime

## When to avoid
- you need a production-ready, backwards-compatible language
- you require mature IDE integrations or a large ecosystem
- you need mobile or console deployment today

## Facets
- artifact type: cli-tool
- maturity: experimental
- function: programming-language, compiler, interpreter, cli
- domain: programming-languages, developer-tools
- platform: cross-platform, rust, cli
- tags: hot-reloading, scripting-language, embeddable-runtime, llvm, aot-compilation, statically-typed, gamedev, game-development

## Member repositories
- mun-lang/mun (main) score 67

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:17.045061+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 2026-08-30T02:52:25.246596+00:00, confidence not recorded.
  - readme: https://github.com/mun-lang/mun (fetched 2026-08-28T04:06:17.045061+00:00, sha 0e12d7fedae9)
  - homepage: https://mun-lang.org (fetched 2026-08-29T10:32:20.455957+00:00, sha 4599fe3ba163)
  - site_page: https://docs.mun-lang.org (fetched 2026-08-29T10:32:20.464927+00:00, sha c28081d6fc34)
  - registry_crates: https://crates.io/api/v1/crates/mun (fetched 2026-08-29T10:32:20.469034+00:00, sha 0dafa5728454)
  - site_page: https://mun-lang.org/faq (fetched 2026-08-29T10:32:20.467115+00:00, sha 2887a5b9d1f7)
- Data as of 2026-08-30T08:39:29.467469+00:00.