Another fan of pikvm, love mine. I have it plugged into a HDMI switcher so I can control four boxes from one pikvm. It does use some pins so if you wanted to control the power switches you have to do some extra work.
Worth considering if you want to get a UPS at the same time for the NAS, pikvm and any networking you have. Will all last longer with one to avoid random power cuts or surges.
If you need to access it remotely I would strongly suggest getting wireguard or some other reliable VPN setup rather than exposing the web interface to pikvm directly to the internet.