Update flake (`neovim-nightly-overlay` is fixed)
Format all `.nix` files
Unify package/module argument order:
- `inputs`, `outputs`, `lib`, `pkgs`, `config`, ...
Move Jellyfin config to a `NixOS` module (first one, yay)
Add `direnv` to `reo101-shell` modules (was used, but not defined as wanted)
- TODO: make it optional (module config options)
Based on `cce47e4df5/standard`
Adds (experimental) support for `nix-on-droid` and `nix-on-darwin`
Includes support for multiple hosts of each base
Adds config for `cheetah` on `nix-on-droid`