Close #25037 Close #31037 This PR adds a Arch package registry usable with pacman.  Rewrite of #25396 and #31037. You can follow [this tutorial](https://wiki.archlinux.org/title/Creating_packages) to build a package for testing. Docs PR: https://gitea.com/gitea/docs/pulls/111 Co-authored-by: [[email protected]](mailto:[email protected]) Co-authored-by: @ExplodingDragon --------- Co-authored-by: dancheg97 <[email protected]> Co-authored-by: dragon <[email protected]> Co-authored-by: wxiaoguang <[email protected]>