vanadium/home: clean up nix packages

nix/configurations/vanadium/home/programs.nix

@@ -69,18 +69,11 @@
     pkgs.onefetch
     pkgs.just
 
-    # nix tools
-    # # Alejandra handles inline comments poorly
-    # # https://github.com/kamadorueda/alejandra/issues/429
-    # pkgs.alejandra
-    pkgs.nixfmt-rfc-style
-    pkgs.nurl
-    pkgs.dix
-    pkgs.niv
+    pkgs.nixfmt-rfc-style # formatter
+    pkgs.nurl # fetcher made easy
+    pkgs.nix-diff # debug cache miss
     pkgs.npins
-    pkgs.nix-tree
-    pkgs.nix-output-monitor
-    pkgs.nh
+    pkgs.nix-tree # analyze closure
 
     # productivity / media
     pkgs.evolution