Bruce,
Re making contributions to KStars Thanks for your interest in improving KStars! I recently added instructions on how new developers might get started to the
KStars README file.
If it is not clear, please post questions, and hopefully we can get you started. -- A great "starter project' would be improving the parts of the README that aren't clear

You can then submit MRs and have them reviewed.
Re Guiding failures: Sorry, I'm not sure I understand what the issue you're referring to is. Do you mean "losing track of the guide star"? If so, I made significant improvements to that in the SEP MultiStar guider star-detection algorithm, and I'd encourage you to try that if you aren't already. If you are using that and it's still having that issue, I'd love to see a log or two with debugging output enabled for at least guide, fits and capture. If the issue is that the guider doesn't return to exactly the same same spot as where it started from when calibrating, yes, that's on my list, and shouldn't be to bad an issue to ultimately fix, but I wanted all the other changes i made to "settle down", and make sure other things were working well first. If it's something else entirely, please explain further.
Thanks,
Hy
Orion Atlas Pro, William Optics ZS105, WO reducer, Moonlight mini V2 focuser
ZWO ASI1600, OAG & Filterwheel, Astronomik Filters, QHY 5L-II mono guidecam.
KStars/Ekos/Indi all running on an RPi4
Ekos Projects: Analyze, Linear Focuser, SEP MultiStar & GPG Guiding, FITS autostretch, Polar Alignment