Trim down dev tools on nix-on-droid

machines/tablet/home.nix

@@ -1,5 +1,17 @@
 { config, lib, pkgs, ... }:
 
 {
-  nathan = { config = { isDesktop = true; }; };
+  nathan = {
+    programs = {
+      util = { git = { gpgSign = false; }; };
+      devel = {
+        idris2 = false;
+        haskell = false;
+        js = false;
+        raku = false;
+        python = false;
+      };
+    };
+    config = { isDesktop = true; };
+  };
 }