Is it abandoned or is it just done? Before Barrier I was just using an ancient version of Synergy from before they went proprietary, and I only switched because `apt install synergy` stopped working. Either way, keyboard/mouse inputs were sent; good enough.

It's in a pretty good state, I've been using Barrier for years.

There is an actively developed fork https://github.com/input-leap/input-leap, however that fork is still undergoing heavy development and recommends sticking with Barrier until they're able to release v3.0.0 which they expect rather soon.