...and there’s pythonista: http://omz-software.com/pythonista/ ,I have some python shortcuts I use.
And something similar for Lua, and some variants of julyter notebooks.
I oftne use Panic’s code editor (formerly coda) and workingcopy for my git repos.
BTW, you might check out Pyto. I’ve completely replaced Pythonista with it (YMMV, of course), and it has the enormous advantage that it’s actively developed with new releases very frequently.
Not quite. There’s Shortcuts (https://support.apple.com/guide/shortcuts/welcome/ios).
Limited? Yes, but not nothing, either. This _may_ evolve into something that’s more powerful.