[mattgodbolt]

Weird and wonderful it was, but also amazingly hackable. Using similar tricks to the allocator, I was able to "ROM patch" RISC OS 3.1 to look like 3.5 [1] using only a few bytes of module space. I do miss those days :)

[1]: http://xania.org/201212/finallook-a-risc-os-3.1-hack