proto

A pluggable multi-language version manager.

Runs as proto|macOS, Linux, Windows|moonrepo.dev

Open form in Otty otty.toml

Command form

ai-draft · 1 task · 6 fields

Install one tool with proto install. Other subcommands and post-install hook arguments are not covered.

Opens the form; the finished command lands at your prompt, unrun

Run in Otty

otty gui proto

`proto install`

Install a tool

Install a tool at a version. Without a version it uses the pinned one in .prototools, or latest.

Install a toolExample values, fixed in this page — nothing here reaches a terminal

Basic

Tool*

string

Version

string

Pin the version

--pin

TasksEach one presets the form for one job

Install and pin

toolversionpin

ParametersOnly these flags are editable in the form

Tool

For example deno, bun, node, go.
string · positional 0

Version

For example 1.31 or canary. Leave empty for the pinned version or latest.
string · positional 1

Force reinstall

boolean

--force

Build from source

boolean

--build

Use a pre-built download

boolean

--no-build

Pin the version

boolean

--pin

SourcesEvery flag above is checked against these

docs

$ proto install deno $ proto install deno 1.31 $ proto install deno canary $ proto install bun --pin [tool] - Type of tool. [version] - Version of tool. Defaults to a pinned version in .prototools or "latest". --force - Force install, even if already installed. --build - Build from source if available. --no-build - Download a pre-built if available. --p…

manual2026-10-27

moonrepo.dev

Before it fills your prompt, Otty checks the installed proto against its version. A form that does not match your version is not offered.