# Contributing Prometheus uses GitHub to manage reviews of pull requests. * Every commit *MUST* be signed off to agree to the [Developer Certificate of Origin (DCO)](https://developercertificate.org/). [How does it work?](https://github.com/dcoapp/app#how-it-works) ** There is a [browser extension](https://github.com/scottrigby/dco-gh-ui) if you're making edits from the GitHub UI. * If you have a trivial fix or improvement, go ahead and create a pull request, addressing (with `@...`) the maintainer of this repository (see [MAINTAINERS.md](MAINTAINERS.md)) in the description of the pull request. * If you plan to do something more involved, first discuss your ideas on our [mailing list](https://groups.google.com/forum/?fromgroups#!forum/prometheus-developers). This will avoid unnecessary work and surely give you and us a good deal of inspiration. * Generally, the documents you see on are sourced from this repository. The only exception are the documentation pages that are versioned per Prometheus release. Those are sourced in [the docs directory of the prometheus/prometheus repository](https://github.com/prometheus/prometheus/tree/main/docs) for the related version.