refactor(nix)!: move nix module to programs

modules/profiles/base.nix

@@ -32,10 +32,6 @@ in
   time.timeZone = "Europe/Berlin";
 
   my = {
-    nix = {
-      gc.enable = true;
-      optimise.enable = true;
-    };
     bin.enable = true;
     shell = {
       abbreviations = {
@@ -63,6 +59,10 @@ in
       git.enable = true;
       gpg.enable = true;
       navi.enable = true;
+      nix = {
+        gc.enable = true;
+        optimise.enable = true;
+      };
       tmux.enable = true;
       tmux.keybinds = {
         prefix = {

modules/programs/nix.nix

@@ -6,10 +6,10 @@
 
 with lib;
 let
-  cfg = config.my.nix;
+  cfg = config.my.programs.nix;
 in
 {
-  options.my.nix = {
+  options.my.programs.nix = {
     gc = {
       enable = mkEnableOption "nix-gc";
       minimumFreedGB = mkOption {