Ossplate

Build one project, ship it everywhere.

ossplate helps you start and maintain a project that ships the same CLI through Rust, npm, and PyPI.

It gives you a working baseline with:

• one real core CLI
• thin JavaScript and Python wrappers
• release-ready workflows for Cargo, npm, and PyPI
• a scaffold you can create, adopt, and keep in sync

What It Does

Use ossplate when you want a single command-line tool to exist cleanly in multiple ecosystems without maintaining three separate implementations.

It can:

• create a new scaffolded project
• initialize an existing directory with the expected structure
• validate project identity and metadata
• synchronize the files it owns

Quick Start

cargo run --manifest-path core-rs/Cargo.toml -- create ../my-new-project \
  --name "My Project" \
  --repository "https://github.com/acme/my-project" \
  --author-name "Acme" \
  --author-email "oss@acme.dev" \
  --rust-crate "my-project" \
  --npm-package "@acme/my-project" \
  --python-package "my-project-py" \
  --command "my-project"

Then check that everything is aligned:

cargo run --manifest-path core-rs/Cargo.toml -- validate
cargo run --manifest-path core-rs/Cargo.toml -- sync --check

Core Commands

ossplate version
ossplate create <target>
ossplate init --path <dir>
ossplate validate
ossplate sync --check

The same command surface is available through the Rust binary and the packaged JS/Python wrappers.

Why It’s Useful

• You keep one source of truth for CLI behavior.
• You avoid drift between Rust, npm, and PyPI releases.
• You get a real scaffold instead of a fake demo project.
• You can publish with modern registry workflows instead of assembling release plumbing from scratch.

Learn More

• Documentation
• Adoption Guide
• Testing Guide
• Release Guide
• Architecture

License

Licensed under the Unlicense.