I'm going to rebuild my workstation because maintaining it is now a nightmare after using "recommended" repo's that now conflict with each other. Every time I do a yum update I it fails with conflicts. I'm looking for new recommendations for which repo's to use to have a stable Centos 7 workstation. Much like Centos itself, most of the web pages are very old now. I'm looking for a KDE workstation with mp3 support and video editing. I use simple command line tools such as ffmpeg.