So, no, I don't code, because I can't prove it's legal for me to do so.

This reason for abstaining from one of the things you like in life was damn sad. :-(

Anything I could create would pale in comparison to the dedicated efforts of thousands of smarter people, so I just don't bother. I guess you could call that laziness, or just cynicism.

Check out my scratchpad. It has taken a long time ^(*).

But I don't think anyone ever did something like that before. It makes some kinds of modelling applications possible to implement that is very, very hard without this module.

Besides, those commercial programs are made with teams of programmers, so join a team of people doing something (-: there are few idiots like me which aren't rms, but still tackle really large problems :-)

^(*) Documentation was hard to write without a threat to make me starve. This winter I had allergy problems with my stomach and lost 15 kg. It was no fun, but I have learned that documenting is worse than starving. Will make it even harder next time I have to write documentation on a job. :-(