installed steam, half-life, jumped into training, got about 10fps avg. at 1080p. tanking resolution only gave me about 1 extra fps average, so my bottleneck is likely CPU. i haven't tweaked my pi or FEX at all yet. very stable, though!
actually running it all was very simple: steam installed as normal on the host, and run with
FEXBash steam. everything is lifted to x86_64 from there.currently trying to investigate how much of a performance boost i can get by forwarding host libraries...fingers crossed!