[BRLTTY] BRLTTY on Raspberry Pi

[Kyle]

I'm not sure about Gentoo, but I have successfully used it on 
ArchLinuxARM on both 32-bit and 64-bit ARM processors. I was considering 
looking at Gentoo on one of my computers, as all I use these days is 
32-bit and 64-bit ARM, but I wanted to try it on 64-bit devices, one of 
which is a Raspberry Pi 3B+, and find that the Gentoo version for these 
devices is fairly old and still considered to be experimental. I do know 
that brltty has no problem compiling for either architecture, so if you 
can get Gentoo working, you can certainly use brltty.

~Kyle