Check out OpenRGB to see if it meets your lighting needs. I use it with Corsair Commander Pro, keyboard, mousepad, RAM, QL fans and the ASUS RGB header and attached lighting. It’s been working great on OpenSUSE Tumbleweed for me.

Bitwarden for hosting your own password manager.

Not sure if you have any smart home devices, homeassistant is another great self host program

Little Bobby Tables