Not just Induction, I have a (new) gas stove with a frying mode on one of the hobs that lets you set the temp from 160-200 Celsius, and it controls the gas level to keep it at temp.

• Octoprint if you have a 3D printer
• Volumio (or similar) if want a device you can cast music to
• for astronomy can install astroberry for remote control of your scope and camera
• run home assistant for home automation
• pihole for use as a DNS server that blocks ads
• plug a camera in and use it as a webcam/ security camera