ref(nix): refactored out universityTools

nix/home/common/default.nix

@@ -1,8 +1,11 @@
 {
   pkgs,
+  unstable,
+  mypkgs,
   lib,
   enableCmus,
   extraUtils,
+  universityTools,
   ...
 }: {
   home = {
@@ -70,6 +73,8 @@
     ++ (
       if extraUtils
       then [
+        unstable.opam
+        unstable.cargo
         hyperfine
         watchexec
         tea
@@ -77,5 +82,14 @@
         gnumake
       ]
       else []
+    )
+    ++ (
+      if universityTools
+      then [
+        mypkgs.logisim-evolution
+        mypkgs.necrolib
+        pkgs.rars
+      ]
+      else []
     );
 }