I actually bought a ausustor NAS with the intention of flashing it with trueNAS or run headless. But tbh the OS does what I need rn with reasonable effort and I actually stuck the the stock OS. The backup options are not that great to use and with one press backup you can only save a single share at a time. So I am using syncthing for that.
“Fast enough to having games installed” haha this reminds me of when I started gaming again after years, I saw games are now like 150gb so I considered it bulk data and put it on my HDDs 😬 but yea the stuff also needs to be loaded at some point