I use this in cinnamon as well if this means anything, thanks to a nice guy who set it up for me ( i met him on a switch discord ) so major props to him.
I downloaded the moonlight-embedded git and just compiled it the way you would anything else really (cmake>make>make install etc) and then ran it from its directory, that's really all it was, the same way you build anything, there was no special thing I had to do.
You can probably use yaourt and do the same thing ( modify the PKGBUILD when prompted and add 'aarch64' to the list of architectures otherwise it'll say it can't )
I downloaded the moonlight-embedded git and just compiled it the way you would anything else really (cmake>make>make install etc) and then ran it from its directory, that's really all it was, the same way you build anything, there was no special thing I had to do.
You can probably use yaourt and do the same thing ( modify the PKGBUILD when prompted and add 'aarch64' to the list of architectures otherwise it'll say it can't )