diff --git a/obelisk/haskell-overrides.nix b/obelisk/haskell-overrides.nix
index 8b57fdd9b45cf28f0763e7f7d849f828aa581467..15a3912cf159b14931b58b78221f6b54461bef21 100644
--- a/obelisk/haskell-overrides.nix
+++ b/obelisk/haskell-overrides.nix
@@ -2,6 +2,19 @@
 self: super:
 with pkgs.haskell.lib; {
 
+  # Sometimes, I just want fast build times, and I don't care about tests,
+  # documentation, or getting stuff from a cache.
+  # From https://discourse.nixos.org/t/nix-haskell-development-2020/6170/2
+  mkDerivation = args: super.mkDerivation (args // {
+      doCheck = false;
+      doHaddock = false;
+      enableLibraryProfiling = false;
+      enableExecutableProfiling = false;
+      # jailbreak = true; # Maybe a bit too much hehe
+      # Disable compiler optimizations for faster compilation:
+      # buildFlags = [ "--ghc-options=-O0" ];
+    });
+
   # Use our fork of android-activity which adds support for VIEW intents.
   android-activity = import
     (nix-thunk.thunkSource ./dep/android-activity)