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+++ b/.gitignore
@@ -2,3 +2,4 @@ node_modules/
 build/
 cache/
 .vscode
+.envrc
diff --git a/.python-version b/.python-version
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@@ -0,0 +1 @@
+3.10.9
diff --git a/CONTRIBUTING.adoc b/CONTRIBUTING.adoc
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+= Keep Contribution Guide
+
+🎉 Thanks for taking the time to contribute! 🎉 Contributions are welcome from
+anyone, and even the smallest of fixes is appreciated!
+
+The following is a set of guidelines for contributing to Keep and its packages.
+These are mostly guidelines, not rules. Use your best judgment, and feel free to
+propose changes to this document in a pull request.
+
+== Getting started
+
+1. Fork
+   https://github.com/keep-network/sortition-pools[`keep-network/sortition-pools`]
+2. Clone your fork
+3. Follow the
+   link:README.md#Setup[installation & build steps] in the README.
+4. Set up the <<Development Tooling>>.
+5. Open a PR against the `main` branch and describe the change you are intending
+   to undertake in the PR description.
+
+Before marking the PR as ready for review, make sure:
+
+* It passes the linter checks (`npm run lint` and `npm run lint:fix`).
+* It passes the https://github.com/keep-network/sortition-pools/actions[continuous
+  integration tests].
+* Your changes have sufficient test coverage (e.g regression tests have
+  been added for bug fixes, unit tests for new features).
+
+== Development Tooling
+
+Commits
+https://help.github.com/en/articles/about-commit-signature-verification[must
+be signed].
+
+=== Continuous Integration
+
+Keep uses https://github.com/keep-network/sortition-pools/actions[Github
+Actions] for continuous integration. All jobs must be green to merge a PR.
+
+=== Pre-commit
+
+Pre-commit is a tool to install hooks that check code before commits are made.
+It can be helpful to install this, to automatically run linter checks and avoid
+pushing code that will not be accepted. Follow the
+https://pre-commit.com/[installation instructions here], and then run
+`pre-commit install` to install the hooks.
+
+=== Linting
+
+Linters and formatters for Solidity, JavaScript, and Go code are set up and run
+automatically as part of pre-commit hooks. These are checked again in CI builds
+to ensure they have been run and are passing.
+
+To run the linters and formatters manually, use the following commands:
+* `npm run lint` - checks files against linting rules.
+* `npm run lint:fix` - checks files against linting rules and fixes any
+  issues that can be fixed automatically.
+
+If you want to change a rule, or add a custom rule, to the JavaScript or
+Solidity linting, please propose these changes to our
+https://github.com/keep-network/solium-config-keep[solium-config-keep], 
+https://github.com/keep-network/eslint-config-keep[eslint-config-keep], or 
+https://github.com/keep-network/prettier-config-keep[prettier-config-keep]
+packages. All other packages have them as a dependency.