## Layout
```
.
├── dock               # MacOS dock configuration
├── casks.nix          # List of homebrew casks
├── default.nix        # Defines module, system-level config
├── files.nix          # Non-Nix, static configuration files (now immutable!)
├── home-manager.nix   # Defines user programs
├── packages.nix       # List of packages to install for MacOS
├── secrets.nix        # Age-encrypted secrets with agenix
```