OBS v28 is amazing. It's bundled with the obs-websocket v5 plugin now. I have updated OBS-web [1] to be compatible with this, so you can now control OBS remotely without any additional setup.
It also finally has application audio capture built in. This isn't such a big deal for a dedicated streaming box, but if you're using it for screen recording, it's nice to not grab audio from programs other than the intended one.