One of my machines was having trouble rebuilding ffmpeg-libfdk_aac recently. It complained about a dependency conflict, even though I had just built it on another machine without issue and the dependencies should have been the same between them. A pinned comment suggests building in a clean chroot, but the linked directions are for Arch Linux and don’t work on Artix Linux due to systemd not being available.
There is a way. Buildpkg, which on Artix is provided by artools-pkg, makes the job fairly simple. Install it:
yay -S artools-pkg
Once that’s done, check out the package you want from AUR:
cd /tmp
git clone https://aur.archlinux.org/ffmpeg-libfdk_aac
cd ffmpeg-libfdk_aac
Build it:
buildpkg -r $(pwd)/chroot
Install it:
makepkg -i