moonrepo/proto

Health v2 · maintenance only

Adoption not part of the score

1399 stars · 92 forks observed · 2026-08-28

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

proto is a pluggable multi-language version manager written in Rust that manages programming language toolchains (Node, Python, Go, Rust, Bun, Deno, and more) through a single CLI. It supports contextual version detection, checksum verification, and extensibility via WASM plugins, including compatibility with asdf plugins.

Use cases

• manage node and python versions with one tool
• replace nvm pyenv and rustup with a single version manager
• install multiple language toolchains across a team consistently
• pin tool versions per project directory
• use asdf plugins through a faster rust version manager
• set up reproducible toolchains in CI

When to choose

• you work across multiple languages and want one unified toolchain manager
• you want fast, cross-platform version management written in Rust
• you need per-directory or per-project tool version pinning
• you want to extend version management to custom tools via WASM plugins

When to avoid

• you only use a single language and its native version manager suffices
• you rely on version managers with features proto does not emulate
• your team is already standardized on asdf, mise, or similar tools

Facets

cli-tool · maturity active

cli developer-tools configuration-management plugin-system developer-tools windows cross-platform cli rust version-manager toolchain wasm-plugins asdf-compatible multi-language command-line automation linux macos

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markdown · JSON · MCP: product_card(name="moonrepo/proto")