This description of a Minecraft-based computer implementing Brainfuck had me laughing:
The program code is stored using villagers with different names for each command. While the program is running they are moved between three compartments …
[These] are the 8 registers that store the data. Each consists of two droppers and two hoppers that exchange dirt blocks
Not unlike some web frameworks I’ve seen, quite frankly. Someone needs to implement PHP in Minecraft hardware.