shell-things/etc/yum.repos.d

dnf still reads this repository apparently, and the repos I end up adding:

• https://github.com/yggdrasil-network/yggdrasil-network.github.io/issues/127#issuecomment-766520311
• https://www.insynchq.com/
• https://keybase.io/docs/the_app/install_linux
• https://rpmfusion.org/Configuration