# Contributing to Tectonic Thanks for your interest in contributing to Tectonic! There are a variety of ways to contribute to the project. This document is concerned with things that you do on GitHub: submitting code and managing bug reports. Please see [the corresponding section of the main Tectonic website](https://tectonic-typesetting.github.io/contribute.html) for a bigger-picture overview. ## Code of Conduct The only restriction for contributions is that you must abide by Tectonic’s [Code of Conduct](./CODE_OF_CONDUCT.md). In summary, it says that you should not act like a jerk. Good-faith efforts to follow the letter and spirit of the Code of Conduct are *required* of all Tectonic community members. ## Pull Requests Pull requests are very welcome! If you are pondering a substantial change, please [open an issue](https://github.com/tectonic-typesetting/tectonic/issues/new) before starting work so that the design can be discussed with the development team. The [CI](https://en.wikipedia.org/wiki/Continuous_integration) system requires that all submitted Rust code be formatted according to the [rustfmt](https://github.com/rust-lang/rustfmt#readme) tool. We *strongly* recommend that you achieve this by configuring your text editor to apply `rustfmt` formatting every time you save a file, [as per these instructions](https://github.com/rust-lang/rustfmt#running-rustfmt-from-your-editor). The Git history stays easier to read this way since we avoid making commits that simply reformat existing code. ## Legalities New Tectonic code is licensed under the MIT License, and we assign its copyright to “the Tectonic Project”. Any code that you submit to Tectonic will be assumed to be made available under these terms unless explicitly stated otherwise.