Initially, I was using a weird combination of options in order to apply
my theme dynamically. I was setting a read-only option from inside my
modules, which was then used in every application that required it. What
I ended up doing is refactoring everything in order to be inside of my
theme module, and automatically configured when enabled, without doing
any mkMerge/mkIf shenanigans in my other pieces of configuration. This
is healthier, although it should be split up as the theme/default.nix
got quite big.
Refactored the entire repository structure, as putting everything into
modules was just awkward. Took heavy inspiration from fufexan's
repository, fufexan/dotfiles, as the structure felt much saner.