Provide prebuilt Arch packages as alternative to AUR ones and local PKGBUILDs

[clsty]

What would you like to be added?
Provide prebuilt Arch packages as alternative to AUR ones and local PKGBUILDs.
Useful links:

• https://wiki.archlinux.org/title/Pacman/Tips_and_tricks#Custom_local_repository
• https://wiki.archlinux.org/title/Pacserve
• https://github.com/vifly/arch-build
  • This project uses GitHub Actions to upload packages to GitHub Releases automatically.
• https://github.com/archlinuxcn/lilac

How will it help

• Fast installation speed.
• Stable installation result.
• Allows BlendOS to use this project as discussed here
  • BlendOS seems to be using container technic for Arch/AUR packages. If BlendOS is supported, we may be able to support DistroBox (using similar technic) too, which runs on most distros.