This repository is no longer maintained. Install MultiMC on Arch Linux from the AUR: multimc-bin.
The AUR package's PKGBUILD is now made, with the .deb and .rpm, from one source:
MultiMC/Packaging (arch/PKGBUILD.in, filled in by
build.py). From version 1.9 it builds from the wrapper's source tarball instead of
repackaging the .deb.
The PKGBUILD here is the last one from this repository, for the wrapper package 1.8, kept for
reference.
Questions: Discord.