Self hosted retro private EQemu, I also use the server for Jellyfin, just for music.
I used to use it to control my window AC from work too, but sadly the smart plug I use for that died over the winter, was nice to pair with those tuya-alternative through http since my cheapo phone needs to save all the storage it can. Its on a very old rig, so I'm always impressed that it still works.
RL has been like that for a while