I'm also on 34 keys though I might go up to 36 when the mikefive[1] comes out. I started with my mods on my thumb keys, then moved to home row mods but as I got faster (not blazing, just 60+WPM) they would often trigger accidentally.t

I ended up looking a bit more into it and stumbled upon urob's timeless home row mods[2] and they work pretty well. Have only had a couple accidental triggers but I'm pretty sure they would be better with a dedicated shift key, hence the interest in 36 keys. I might have a look at a combo to have a delay-less shift but I quite like how my layout is at the moment[3]

[1] https://www.reddit.com/r/ErgoMechKeyboards/comments/1cfg3vr/...

[2] https://github.com/urob/zmk-config?tab=readme-ov-file#timele...

[3] https://github.com/ValentinPearce/zmk-config