[nix] Set up a system for specifying packages

nix/hosts/alymac/default.nix

@@ -1,28 +1,48 @@
-# hosts/YourHostName/default.nix
 { pkgs, dotfiles, ... }:
+
+let
+  packageSets = with pkgs; rec {
+    base = [
+      jq
+      ripgrep
+    ];
+    languages = [];
+    tooling = [];
+    multimedia = [];
+
+    everything = base ++ languages ++ tooling ++ multimedia;
+  };
+
+in
 {
+  imports = [];
+
+
   # Make sure the nix daemon always runs
   services.nix-daemon.enable = true;
-  # Installs a version of nix, that dosen't need "experimental-features = nix-command flakes" in /etc/nix/nix.conf
-  # services.nix-daemon.package = pkgs.nixFlakes;
+
+  # enable the gpg agent by default
+  programs.gnupg.agent.enable = true;
 
   # if you use zsh (the default on new macOS installations),
   # you'll need to enable this so nix-darwin creates a zshrc sourcing needed environment changes
   programs.zsh.enable = true;
 
+  # Make sure to set the correct values, or everything will break! (in reality,
+  # it will just not build)
   users.users.alyxia = {
     name = "alyxia";
     home = "/Users/alyxia";
   };
-  
-
-  # enable the gpg agent by default
-  programs.gnupg.agent.enable = true;
 
   home-manager = {
     useGlobalPkgs = true;
     useUserPackages = true;
     users.alyxia = { pkgs, ... }: {
+      home = {
+        packages = packageSets.everything;
+      };
+
       programs.zsh = {
         enable = true;
         initExtra = ''