Use a Raspberry Pi to bridge smart home devices to HomeKit, even if they're not officially compatible. Run your own Minecraft ...
Not every Pi project takes days to finish. Here are several you can complete in an hour or less, then immediately enjoy the fruits of your labor.
Sometimes, you don't have direct access to the Raspberry Pi running your project. Perhaps it's installed outdoors with no display and keyboard attached. Or maybe it was squeezed into a compact chassis ...