This repository contains the APKBUILD files for each and every Alpine Linux package, along with the required patches and scripts, if any.
It also contains some extra files and directories related to testing (and therefore, building) those packages on GitHub (via Travis).
If you want to contribute, please read the contributor guide and feel free to either submit a git patch on the Alpine aports mailing list (alpine-aports@lists.alpinelinux.org), or to submit a pull request on GitHub.