Developer Vimpo has established a Minecraft server on a budget smart lightbulb using the BL602 microcontroller. The server, called Ucraft, is a lightweight system that lacks many traditional features but operates effectively. The binary size is approximately 46 KB without the authentication library and 90 KB with it. Memory consumption varies based on active players, peaking at around 70 KB with authentication for up to 10 players, or dropping to 20 KB without it.