# Contribute to Trezor Firmware Please read the general instructions you can find on our [wiki](https://wiki.trezor.io/Developers_guide:Contributing). In this repository your Pull request should follow these criteria: - The code is properly tested. - Tests must pass on [CI](https://travis-ci.org/trezor/trezor-firmware). - The code is properly formatted. The make command `make style_check` checks if it is so and you can use `make style` to make it happen. - Generated files are up-to-date. Use `make gen` in repository root to make it happen. - Commits must have concise commit messages, the imperative mood is preferred ([rationale](https://gist.github.com/robertpainsi/b632364184e70900af4ab688decf6f53)). - Multiple commits per PR are allowed, but please do not use reverts etc. - use interactive rebase. Do not use merge (e.g. merge trezor/master into...). Again, use rebase.