Properly configured dwarf fortress

The dwarf fortress packages built into nixpkgs are a little silly and a
lot overbearing - do a bunch of hacky substitution to pound them into
submission so that I can actually configure stuff like SHOW_FLOW_AMOUNTS
and AUTOSAVE, which I feel like I need.

home/home.nix

@@ -9,6 +9,7 @@ let machine = ./machines/chupacabra.nix; in
     ./modules/emacs.nix
     ./modules/email.nix
     ./modules/firefox.nix
+    ./modules/games.nix
     ./modules/i3.nix
     ./modules/shell.nix
     ./modules/tarsnap.nix
@@ -77,13 +78,6 @@ let machine = ./machines/chupacabra.nix; in
     spotify
     playerctl
 
-    # games
-    crawl
-    (dwarf-fortress-packages.dwarf-fortress-full.override {
-      enableIntro = false;
-      enableFPS = true;
-    })
-
     # Nix things
     nix-prefetch-github
   ];