Do not clear cache on exit. I'm working on huge projects and want a fast
file navigation.
Do not limit number of files as default is already way to low for the
large projects I'm working on.
I managed my setup manually.
This commit ports the existing setup to home-manager.
The program module is used to install neovim together with plugins.
Custom plugins are now maintained at Gitea / GitHub and loaded via nix as well.
Daniel Siepmann