It was actually the noise all the drives in my desktop PC made. That prompted me to build a NAS to put them in that I could put in the cupboard. The obsession with self hosting just grew out of having that headless Linux machine running all the time and not doing a whole lot.

One thing that Shinobi could do was integrate well with the detectors on cam, so if your cam had person/vehicle detection or line crossing etc you could use that. That worked well.

But I too went from Shinobi to Frigate and I love it. The integration with HA is very good.