Jumpy on Amiga
Jumpy is quite old, you know. Back in the year 1989 it began jumping around on the world famous Amiga. Now that name was blocked in the iTunes AppStore® so Jumpy got JumpyRally.
I had started Jumpy as a personal "science" project back in school. It served my well in learning assembler for the Motorola 68000. One lesson was "do not use hardcoded values". And there you go: it's the perfect name for this site.