diff --git a/overlays/default.nix b/overlays/default.nix
index ca91d5b..93ad3ca 100644
--- a/overlays/default.nix
+++ b/overlays/default.nix
@@ -14,50 +14,6 @@
           src = self.inputs.tela-icon-theme;
         });
 
-        libreoffice-fresh-unwrapped = super.libreoffice-fresh-unwrapped.overrideAttrs (_old: {
-          doCheck = false;
-        });
-
-        redis = super.redis.overrideAttrs (_old: {
-          doCheck = false;
-        });
-
-        haskellPackages = super.haskellPackages.override {
-          overrides = hsSelf: hsSuper: {
-            crypton  = super.haskell.lib.overrideCabal hsSuper.crypton  (oa: {
-              doCheck = false;
-            });
-            crypton-x509-validation  = super.haskell.lib.overrideCabal hsSuper.crypton-x509-validation  (oa: {
-              doCheck = false;
-            });
-            tls = super.haskell.lib.overrideCabal hsSuper.tls  (oa: {
-              doCheck = false;
-            });
-            tls_1_9_0 = super.haskell.lib.overrideCabal hsSuper.tls_1_9_0  (oa: {
-              doCheck = false;
-            });
-            typst = super.haskell.lib.overrideCabal hsSuper.typst  (oa: {
-              doCheck = false;
-            });
-          };
-        };
-
-        python311 = super.python311.override {
-          packageOverrides = py-self: py-super: {
-            numpy = py-super.numpy.overridePythonAttrs(old: {
-              disabledTests = [ "test_umath_accuracy" ] ++ (old.disabledTests or []);
-              doCheck = false;
-              doInstallCheck = false;
-              doPytestCheck = false;
-            });
-            pandas = py-super.pandas.overridePythonAttrs(old: {
-              disabledTests = [ "test_rolling" ] ++ (old.disabledTests or []);
-            });
-          };
-        };
-
-        python11Packages = python311.pkgs;
-
         prismlauncher = super.prismlauncher.overrideAttrs (old: {
           patches = (old.patches or []) ++ [
             self.inputs.prism-game-options-patch