More dev things

hm/dev/c.nix

@@ -20,6 +20,8 @@
         cmake
         ddd
         gdb
+        gnumake
+        valgrind
       ];
       sessionVariables = {
         CCACHE_CONFIGPATH = "${config.xdg.configHome}/ccache.conf";

os/dev/default.nix

@@ -18,6 +18,8 @@
     })
     {
       users.extraGroups.dialout.members = [ "geoffrey" ];
+      # Always comes in handy, not enabled by default anyways
+      programs.nix-ld.enable = true;
     }
   ];
 }