PfSense / OpnSense firewall. super stable.
Ubiquiti cloudkey on Raspberry Pi
OpenMediaVault on Raspberry Pi. stable script not an OS image
Pi Hole whole home Ad filter. stable and useful. also DHCP server, stats etc. RasPi 3 is fine for this project. Install script not OS image
Shelly 2 IoT add-on. Use your existing switches. $25cdn ea.@BestBuy online. csa approved, works with mqtt/HomeKit ootb, easily flashed to tasmota firmware. fit in the box behind the light switch, no modification needed. worth a few $ more than the Sonos mini
TagMo Android software and blank NFC Ntag215 tags. different tags will NOT work for Amibo cloning.
Raspberry Pi Steam Link plays steam games remotely. Cool if you want to put your gaming rig in a window and eject the hot air outside.
Ceiling fan with independent controls via Sonoff 2 channel
3d Printer Creality is best balance between $ / quality
nVidia Gamestream + Moonlight
Cassette tape scrolling display
Nymph-cast a pi chromecast
Pixel Stick project here