I’m not a developer by trade (mostly an email/excel/PowerPoint jockey these days), but am a local sme on a few things, one of which was absolutely critical for a very key project.

I was asked to mock-up a prototype of a core process that produced correct outputs. Dusted off my old toolbox and mocked it up in a combo of python and bash. Probably a total of 900-1000 lines of “code”. The mock-up, running on some little vm, ended up outperforming the production solution for quite some time! :)