Do exactly what Matlab does with that live code thing. Actually do exactly what Matlab does for everything. I love that you can right click on any code and get help with examples and everything was written in human understandable language and not some programmer who was forced to write a help doc. Showing what variables are what is good too.

I'm not a programmer and I thoroughly enjoyed using Matlab as a sort of scripting language to do things on my computer. Yeah it's Overkill but it was just so easy. Also the built in functions for image compare are great

I'd look at the most popular editors like Atom, or visual studio code. Go from there..