I did the same thing. It was allowed in general, with the correct thought, “if you can code it yourself, you know the content”

I had another “program” that would fail to run but that’s because I wrote notes into it. Doubt that was allowed.

Typewriters.

They had bars that needed to physically move, and so staggering them helped them not collide and get jammed.

If you imagine a bar coming from the center of each key towards your screen, you can see how the staggering was helpful. For instance, M misses J and K above it, naturally, but it also slightly misses I and the 8 above that.

It’s a great solution for a nonexistent problem in keyboards.