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Contributing to Thumbprint

The Design Systems team welcomes contributions from all developers at Thumbtack. These contributions can range from small bug reports to brand new components and initiatives.

Here are a few ways to get started:

File a bug or request a feature

Providing feedback is the easiest way to contribute to Thumbprint. You can do this by creating an issue on GitHub.

If you're a Thumbtack employee, you can also post on #design-systems for quick help.

Contribute code to Thumbprint

There are two ways to contribute code back to Thumbprint:

  1. Tackle open GitHub issues: Issues labeled as “good first issue” or “help wanted” are perfect for contributors that want to tackle small tasks.
  2. Propose and create a new React component: Creating a React component allows contributors to dive-deep into component API design, testing, accessibility, and documentation. Please create a GitHub issue to propose a new component. If the component is a good candidate for Thumbprint, we’ll schedule a kick-off meeting to discuss next steps.

Not sure if the component should be reusable? Take a look at the “Where should a React component live” RFC (internal only).

Developing Thumbprint locally

Use the following commands to run the Thumbprint documentation:

git clone
cd thumbprint
node -v # This must be 8.x
yarn -v # This must be >= 1.4.2
yarn start

Then open http://localhost:8090/ to see the docs. Take a look at www/ to learn more.

Working on Components, Tokens, Atomic, or something else?

The Thumbprint codebase is a collection of packages that we version independently and publish to NPM. These packages live in packages/. Take a look at the package's for specific information about that package.

To add or remove NPM packages from code in packages/, cd into the package's folder (cd packages/[package-name]) and use yarn add, yarn remove, or yarn upgrade. Thumbprint uses Yarn's workspaces feature to manage multiple package.json files in one codebase.

Our documentation source code lives in www/. Take a look at www/ to learn more.

Submitting a pull request

Here are a few things to keep in mind when creating a pull request:

  • Testing: Run yarn test locally to ensure that the build will pass. If the command fails because of Jest snapshot tests, you will have to run yarn test:jest -u to update the snapshots. Review the changes to the snapshots to ensure that they are intended and include them in the code review.
  • Changelog:
    • Most changes within packages/require updates to the package's file. You can skip modifying the changelog if your commit only modifies this list of ignored files.
    • Our changelogs follow the “Keep a Changelog” specification. Our version numbers follow Semantic Versioning.
    • You should not include the package’s new version number as part of your commit. That is done in the release process.

Creating a new package

Create a new folder in packages with the following structure:

├── package.json

Thumbprint follows a traditional GitHub workflow. This means that you should work in a feature branch and submit a pull request when ready for code review.

Releasing Thumbprint packages

Learn how to release the Thumbprint packages and documentation. This process is done by Thumbprint maintainers after your code has merged into master.

As always, reach out to #design-systems (internal to Thumbtack employees) or create an issue if you have questions or feedback.

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