Hi Marc
Have a look at devbox that provides a VM with pre-installed Koha for development purposes:
https://github.com/digibib/kohadevbox/blob/master/README.md (I did not yet test it because I have an own VM for developing).
You find there information and links related to working on patches and useful links to Koha documentation for developers as well.
OK, I already suspected this won't be a matter of 5 minutes and there is no easy way to follow. At the moment I don't have no time to install the current kohadevbox, relearn kohadevbox, install git, learn git etc. etc. so I will postpone this matter to some day in the future. Of course this process is quite scaring when I just want to correct some typos... But thanks anyway for confirming my apprehensions ;-) Best wishes: Michael -- Geschäftsführer · Diplombibliothekar BBS, Informatiker eidg. Fachausweis Admin Kuhn GmbH · Pappelstrasse 20 · 4123 Allschwil · Schweiz T 0041 (0)61 261 55 61 · E mik@adminkuhn.ch · W www.adminkuhn.ch