macOS and linux pacman binaries for devkitPro provided libraries.
Do not attempt to install the files from the .deb manually on non Debian systems, see https://devkitpro.org/wiki/devkitPro_pacman for instructions. Arch, Fedora and Gentoo based distros are covered explicitly there.
Please do not use pacman on your CI workflows. We provide docker images for this purpose at https://hub.docker.com/u/devkitpro
On macOS you should be able to just run the .pkg with right click and open or install it via terminal
sudo installer -pkg /path/to/devkitpro-pacman-installer.pkg -target /
For debian based systems. Replace <arch> with arm64 or amd64 as appropriate.
sudo apt-get install gdebi-core sudo gdebi devkitpro-pacman.<arch>.deb
This should also work on WSL with the x86_64 deb but a symlink may need to be created first
sudo ln -s /proc/self/mounts /etc/mtab