install

Additional install commands

macOS

Homebrewverified · 100%

brew install starlark-rust

local Homebrew formula metadata

Linux

Nixverified · 92%

nix profile install nixpkgs#starlark-rust

nixpkgs package indexes · pkgs/by-name/st/starlark-rust/package.nix · source: api.github.com

overview

Package summary

Rust implementation of the Starlark language

Project links

Commands and aliases

starlark

history

Project history and usage

Starlark in Rust is Meta's Rust implementation of the Starlark configuration language, with a command-line binary that can run a REPL, evaluator, linter, and IDE-related tooling for standard Starlark.

Project history

The README states that facebook/starlark-rust is the canonical repository and that the project was started by Damien Martin-Guillerez. It also notes that version 0.4.0 changed ownership from Google to Meta.

The project exists in the ecosystem of Starlark implementations used by build systems. The README names Bazel, Buck, and Buck2 as Starlark users and says Buck2 depends on this library.

Adoption history

The input package facts show the project packaged for Homebrew and Nix, making the `starlark` binary available outside Rust's Cargo ecosystem.

Adoption is mostly developer-infrastructure adoption rather than end-user CLI adoption: most consumers embed the Rust library into build and configuration systems, while the packaged binary is useful for experiments, linting, and basic standard-Starlark evaluation.

How it is used

The README describes six components, including parser, evaluator, derive macros, map structures, LSP support, and `starlark_bin`, the binary exposed through the command line.

The README cautions that most Starlark embeddings add domain-specific functions and data types, so the packaged binary is most useful as a vanilla Starlark test bed or linter rather than a drop-in evaluator for every Starlark file from a large build system.

Why package nerds care

Package maintainers care about starlark-rust because Starlark is configuration language infrastructure. A standalone packaged interpreter/linter gives developers a way to test and inspect Starlark without installing a full build system.

The project is also notable because it bridges Rust packaging, language tooling, and build-system internals: the CLI is small enough to package, while the library is significant because Buck2 depends on it.

Timeline

2021: Public GitHub issue #1 discussed compatibility with the Starlark specification.
v0.4.0: README says ownership changed from Google to Meta.
2026: GitHub repository page lists version 0.14 as the latest release.

Related projects

Related projects include the Java and Go Starlark implementations, Bazel, Buck, and Buck2.
The README says the Rust implementation mostly follows the Starlark standard while documenting known compatibility differences.

Sources

https://github.com/facebook/starlark-rust#readme
https://github.com/facebook/starlark-rust/issues/1
source_facts.package-manager

security posture

Risk level: green

narrow executable package without higher-risk signals.

Risk classifier

green risk · low confidence · appliance

Why

narrow executable package without higher-risk signals

Signals

metadata:no-higher-risk-signals

Install behavior

No Homebrew post-install hook is recorded in formula metadata.
Homebrew bottle metadata is available for 6 platform targets.
Build metadata lists 1 build dependencies.

Recommended review

Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.

executables

Installed executables

Command	Kind	Exposure	Note
`starlark`	cli	global executable

freshness

Version and freshness

These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.

page generated2026-07-25

manager version0.14.0

manager updated2026-06-01

local dataok

upstreamcurrent

latest detectedv0.14.0

https://github.com/facebook/starlark-rust

okNo freshness warnings were generated.

install metadata

Package metadata

Package key	brew:starlark-rust
Version	0.14.0
Package manager	Homebrew
Package manager page	https://formulae.brew.sh/formula/starlark-rust
Homepage	https://github.com/facebook/starlark-rust
Repository	https://github.com/facebook/starlark-rust
Upstream docs	https://github.com/facebook/starlark-rust#readme
License	Apache-2.0
Source archive	https://github.com/facebook/starlark-rust/archive/refs/tags/v0.14.0.tar.gz
Last updated	2026-06-01T14:43:06Z
Pulse	updated
Build dependencies	rust
Bottle	available (on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux)
Homebrew post-install	not defined
Service	none declared

registry facts

Source database details

Source Database	Homebrew formula API
Tap	homebrew/core
Full Name	starlark-rust
Version Scheme	0
Revision	0
Head Version	HEAD
Bottle Stable Root URL	https://ghcr.io/v2/homebrew/core
Deprecated	no
Disabled	no
Keg Only	no
URL Keys	head stable

source database matches

Other package-manager records

Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.

Nix95%

starlark-rust

nix profile install nixpkgs#starlark-rust

normalized package name match
Matched by: Starlark Rust

nixpkgs package indexes · api.github.com · nixpkgs package indexes: pkgs/by-name/st/starlark-rust/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1

Nix92%

starlark

nix profile install nixpkgs#starlark

installed executable or alias match
Matched by: Starlark

nixpkgs package indexes · api.github.com · nixpkgs package indexes: pkgs/by-name/st/starlark/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1

package graph

Links come from deterministic package relationships, av.db category and tag curation, ecosystem matches, and package hub membership.

source trail

Generated from repository data

This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.

Combined YAML source

View the package source record on GitHub.

combined/starlark-rust.yml

Used sources

Geiger risk classifier
Nucleus package database
av.db category and tag curation
cross-ecosystem install command graph
curated package history
external package-manager database matches
package relationship graph
package version freshness
package-page enrichment

Install starlark-rust with Homebrew, Nix