Hi Marcel, This post may contain the info you need although I think that Astroberry is more of a problem to update. www.indilib.org/forum/astroberry/7371-ho...ry-rpi4.html?start=0 My system is KStars on Ubuntu Mate 20.10. I am unfamiliar with Astroberry so can't help there. A quick look through the above post suggests it should be helpful. Jerry Black (thanks Jerry!) has developed a script that automates setting up KStars and would be worth a look. Here is the link. indilib.org/forum/ekos/9748-build-kstars...-from-git.html#71737 Cheers, MikeRead More...