diff --git a/home.nix b/home.nix
index 69c34b2..7dbb73a 100644
--- a/home.nix
+++ b/home.nix
@@ -3,6 +3,17 @@
 {
   home.stateVersion = "22.05";
 
+  # Temporary overlays for patches
+  nixpkgs.overlays = [
+    (self: super: {
+      # see https://github.com/NixOS/nixpkgs/pull/206745
+      clisp = super.clisp.override
+        {
+          readline = pkgs.readline6;
+        };
+    })
+  ];
+
   home.file.".config/traefik/traefik.toml".source = ./files/traefik.toml;
   home.file.".npmrc".source = ./files/.npmrc;
 
diff --git a/packages.nix b/packages.nix
index 0cb5288..869126c 100644
--- a/packages.nix
+++ b/packages.nix
@@ -109,7 +109,7 @@
 
     jetbrains-mono
     vscode
-    zettlr
+    zettlr # TMP: broken (2022-12-19) - patched with clisp overlay
 
     unclutter-xfixes
     playerctl