diff --git a/flake.lock b/flake.lock
index 5afcac8c..aced2e8e 100644
--- a/flake.lock
+++ b/flake.lock
@@ -299,11 +299,11 @@
     },
     "latest": {
       "locked": {
-        "lastModified": 1675115703,
-        "narHash": "sha256-4zetAPSyY0D77x+Ww9QBe8RHn1akvIvHJ/kgg8kGDbk=",
+        "lastModified": 1675362331,
+        "narHash": "sha256-VmcnKPj5gJLxWK7Bxlhg2LoQvhKRss7Ax+uoFjd3qKY=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "2caf4ef5005ecc68141ecb4aac271079f7371c44",
+        "rev": "a100acd7bbf105915b0004427802286c37738fef",
         "type": "github"
       },
       "original": {
@@ -313,13 +313,25 @@
         "type": "github"
       }
     },
+    "local": {
+      "locked": {
+        "lastModified": 1675517877,
+        "narHash": "sha256-I345MML405WkdyPGaDQxXTHnWD1kNoAH6LmUlM/omiE=",
+        "path": "/home/ben/Workspace/nixpkgs",
+        "type": "path"
+      },
+      "original": {
+        "path": "/home/ben/Workspace/nixpkgs",
+        "type": "path"
+      }
+    },
     "nixos": {
       "locked": {
-        "lastModified": 1675154384,
-        "narHash": "sha256-gUXzyTS3WsO3g2Rz0qOYR2a26whkyL2UfTr1oPH9mm8=",
+        "lastModified": 1675410244,
+        "narHash": "sha256-ODj6egMoH/HgAF/0wIy0EfRBeUx5FMuLl6uAdUW3kCI=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "0218941ea68b4c625533bead7bbb94ccce52dceb",
+        "rev": "f7543a7539a007e9562e4d8d24e17a4bcf369b68",
         "type": "github"
       },
       "original": {
@@ -382,6 +394,7 @@
         "home": "home",
         "keycloak-theme-pub-solar": "keycloak-theme-pub-solar",
         "latest": "latest",
+        "local": "local",
         "nixos": "nixos",
         "nixos-hardware": "nixos-hardware",
         "nur": "nur",
diff --git a/flake.nix b/flake.nix
index c2d2840f..b91bf096 100644
--- a/flake.nix
+++ b/flake.nix
@@ -10,6 +10,8 @@
     nixos.url = "github:nixos/nixpkgs/nixos-22.11";
     latest.url = "github:nixos/nixpkgs/nixos-unstable";
 
+    local.url = "path:/home/ben/Workspace/nixpkgs";
+
     flake-compat.url = "github:edolstra/flake-compat";
     flake-compat.flake = false;
 
@@ -73,6 +75,7 @@
           overlays = [];
         };
         latest = {};
+        local = {};
       };
 
       lib = import ./lib {lib = digga.lib // nixos.lib;};
diff --git a/hosts/flora-6/flora-6.nix b/hosts/flora-6/flora-6.nix
index d7c59716..39e409bc 100644
--- a/hosts/flora-6/flora-6.nix
+++ b/hosts/flora-6/flora-6.nix
@@ -1,6 +1,7 @@
 {
   config,
   latestModulesPath,
+  localModulesPath,
   lib,
   inputs,
   pkgs,
@@ -26,9 +27,11 @@ in {
     profiles.users.barkeeper
 
     "${latestModulesPath}/services/misc/gitea.nix"
+    "${localModulesPath}/services/mail/mailman.nix"
   ];
   disabledModules = [
     "services/misc/gitea.nix"
+    "services/mail/mailman.nix"
   ];
 
   config = {
diff --git a/hosts/flora-6/mailman.nix b/hosts/flora-6/mailman.nix
index a007c971..df71916a 100644
--- a/hosts/flora-6/mailman.nix
+++ b/hosts/flora-6/mailman.nix
@@ -33,6 +33,18 @@ in {
     hyperkitty.enable = true;
     webHosts = ["list.pub.solar"];
     siteOwner = "admins@pub.solar";
+    extraPythonPackages = ps:
+      with ps; [
+        (buildPythonPackage rec {
+          pname = "django-keycloak";
+          version = "0.1.1";
+          src = fetchPypi {
+            inherit pname version;
+            sha256 = "sha256-YoT+fi1w8e4tGW4nK7QmK+WBFQ+IlNXo64FSp0ff/aM=";
+          };
+          doCheck = false;
+        })
+      ];
   };
 
   # TODO add django-keycloak as auth provider
diff --git a/overlays/overrides.nix b/overlays/overrides.nix
index 5650deda..4938df63 100644
--- a/overlays/overrides.nix
+++ b/overlays/overrides.nix
@@ -21,6 +21,11 @@ channels: final: prev: {
     gitea
     ;
 
+  inherit
+    (channels.local)
+    mailmanPackages
+    ;
+
   haskellPackages =
     prev.haskellPackages.override
     (old: {