diff --git a/cachix.nix b/cachix.nix
index ad66d700..d888840a 100644
--- a/cachix.nix
+++ b/cachix.nix
@@ -10,5 +10,5 @@
   imports = lib.mapAttrsToList toImport (lib.filterAttrs filterCaches (builtins.readDir folder));
 in {
   inherit imports;
-  nix.binaryCaches = ["https://cache.nixos.org/"];
+  nix.settings.substituters = ["https://cache.nixos.org/"];
 }
diff --git a/cachix/mweinelt.nix b/cachix/mweinelt.nix
index cdfc2865..d6da2ef4 100644
--- a/cachix/mweinelt.nix
+++ b/cachix/mweinelt.nix
@@ -1,9 +1,9 @@
 {
   nix = {
-    binaryCaches = [
+    settings.substituters = [
       "https://mweinelt.cachix.org"
     ];
-    binaryCachePublicKeys = [
+    settings.trusted-public-keys = [
       "mweinelt.cachix.org-1:J9OCu2VAPJ2IHzpOfoJt16Fm5xl9q8VOHqcqCGSNKsM="
     ];
   };
diff --git a/cachix/pre-commit-hooks.nix b/cachix/pre-commit-hooks.nix
index cc29d6ec..75d003c7 100644
--- a/cachix/pre-commit-hooks.nix
+++ b/cachix/pre-commit-hooks.nix
@@ -1,9 +1,9 @@
 {
   nix = {
-    binaryCaches = [
+    settings.substituters = [
       "https://pre-commit-hooks.cachix.org"
     ];
-    binaryCachePublicKeys = [
+    settings.trusted-public-keys = [
       "pre-commit-hooks.cachix.org-1:Pkk3Panw5AW24TOv6kz3PvLhlH8puAsJTBbOPmBo7Rc="
     ];
   };
diff --git a/cachix/srid.nix b/cachix/srid.nix
index db45c08d..ad765413 100644
--- a/cachix/srid.nix
+++ b/cachix/srid.nix
@@ -1,9 +1,9 @@
 {
   nix = {
-    binaryCaches = [
+    settings.substituters = [
       "https://srid.cachix.org"
     ];
-    binaryCachePublicKeys = [
+    settings.trusted-public-keys = [
       "srid.cachix.org-1:MTQ6ksbfz3LBMmjyPh0PLmos+1x+CdtJxA/J2W+PQxI="
     ];
   };
diff --git a/home-manager/roles/default.nix b/home-manager/roles/default.nix
index e4bf8e2d..b02c6505 100644
--- a/home-manager/roles/default.nix
+++ b/home-manager/roles/default.nix
@@ -17,6 +17,8 @@
 
   news.display = "silent";
 
+  home.stateVersion = "22.05";
+
   programs = {
     home-manager.enable = true;
     exa = {
diff --git a/nix/sources.json b/nix/sources.json
index 181488b4..3ca98525 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -24,15 +24,15 @@
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "home-manager-stable": {
-        "branch": "release-22.05",
+        "branch": "release-22.11",
         "description": "Manage a user environment using Nix",
         "homepage": "",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "6639e3a837fc5deb6f99554072789724997bc8e5",
-        "sha256": "0vg6x7cw2bpiga9k6nlj2n1vrm4qw84721gmlhp3j1i58v100ybc",
+        "rev": "e891b060e7d11bb8f7dedb86a41d804891a6f5a9",
+        "sha256": "0pqzyb7ni9cviiiyhr9x7ri8mi400b2jjpqk873791mj76gfh0hv",
         "type": "tarball",
-        "url": "https://github.com/nix-community/home-manager/archive/6639e3a837fc5deb6f99554072789724997bc8e5.tar.gz",
+        "url": "https://github.com/nix-community/home-manager/archive/e891b060e7d11bb8f7dedb86a41d804891a6f5a9.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "kassandra": {
@@ -80,21 +80,21 @@
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "nixos-mailserver": {
-        "branch": "nixos-22.05",
+        "branch": "master",
         "repo": "https://gitlab.com/simple-nixos-mailserver/nixos-mailserver",
-        "rev": "f535d8123c4761b2ed8138f3d202ea710a334a1d",
+        "rev": "fe36e7ae0db34862e5397544c7b01472b0febc3a",
         "type": "git"
     },
     "nixos-stable": {
-        "branch": "nixos-22.05",
+        "branch": "nixos-22.11",
         "description": "Nixpkgs/NixOS branches that track the Nixpkgs/NixOS channels",
         "homepage": null,
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "fecf05d4861f3985e8dee73f08bc82668ef75125",
-        "sha256": "0f55nj4x8splycfy32p4sjv1if2kg5wp90m9h90wpwrkm3sn9yqs",
+        "rev": "731cc710aeebecbf45a258e977e8b68350549522",
+        "sha256": "1m6bdf74yr434m3xm2cw2frrby38fv1x6dbwk55ncrdrz2ivzlda",
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/fecf05d4861f3985e8dee73f08bc82668ef75125.tar.gz",
+        "url": "https://github.com/NixOS/nixpkgs/archive/731cc710aeebecbf45a258e977e8b68350549522.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "nixos-unstable": {
@@ -121,10 +121,10 @@
         "homepage": "",
         "owner": "cachix",
         "repo": "pre-commit-hooks.nix",
-        "rev": "078b0dee35e2da01334af682ec347463b70a9986",
-        "sha256": "10d2bylrxgzhff3iw8dawgp181clh2kfsa6vf3br2n6bhixd2h0l",
+        "rev": "471c7f1ecace25e39099206431300322632d25c4",
+        "sha256": "091pgslw05f0mp0kwi33xiffvsix2bd2qcggjvp2mkyryh7qr9cm",
         "type": "tarball",
-        "url": "https://github.com/cachix/pre-commit-hooks.nix/archive/078b0dee35e2da01334af682ec347463b70a9986.tar.gz",
+        "url": "https://github.com/cachix/pre-commit-hooks.nix/archive/471c7f1ecace25e39099206431300322632d25c4.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "wizards-dialog": {
diff --git a/nixos/roles/default.nix b/nixos/roles/default.nix
index 280266e7..76025a40 100644
--- a/nixos/roles/default.nix
+++ b/nixos/roles/default.nix
@@ -6,7 +6,10 @@
 }: {
   imports = [../../common ./admin.nix ../../cachix.nix];
 
-  i18n.defaultLocale = "en_US.UTF-8";
+  i18n = {
+    defaultLocale = "en_DK.UTF-8";
+    supportedLocales = ["en_DK.UTF-8/UTF-8" "de_DE.UTF-8/UTF-8" "en_US.UTF-8/UTF-8"];
+  };
 
   # For nixos-rebuild
   nixpkgs.overlays =
@@ -61,19 +64,19 @@
     lib.mkIf (!pkgs.withSecrets) {text = "echo No secrets loaded!; exit 1;";};
 
   nix = {
-    binaryCaches = lib.mkAfter (
+    settings.substituters = lib.mkAfter (
       pkgs.privateValue [] "binary-caches"
       # ++ (
       #   if config.networking.hostName != "hera" then [ "ssh-ng://nix-ssh@hera.m-0.eu?trusted=true&priority=100" ] else [ ]
       # )
     );
-    binaryCachePublicKeys = [
+    settings.trusted-public-keys = [
       "ryantrinkle.com-1:JJiAKaRv9mWgpVAz8dwewnZe0AzzEAzPkagE9SP5NWI="
       "hydra.iohk.io:f/Ea+s+dFdN+3Y/G+FDgSq+a5NEWhJGzdjvKNGv0/EQ="
       "nixbuild.net/maralorn-1:cpqv21sJgRL+ROaKY1Gr0k7AKolAKaP3S3iemGxK/30="
     ];
     nixPath = ["/etc/nix-path"];
-    trustedUsers = ["maralorn" "laminar"];
+    settings.trusted-users = ["maralorn" "laminar"];
     buildMachines = pkgs.privateValue [] "remote-builders";
     extraOptions = ''
       experimental-features = nix-command flakes
diff --git a/overlays/10-previews.nix b/overlays/10-previews.nix
index 02019096..56d4d4e1 100644
--- a/overlays/10-previews.nix
+++ b/overlays/10-previews.nix
@@ -12,14 +12,9 @@ in {
     (unstable)
     nix
     home-assistant
-    vscode-extensions
-    vscodium
     cachix
     cabal2nix
     chrysalis
-    nil
-    taplo
-    tut
     emanote
     helix
     ;
diff --git a/overlays/element-web/default.nix b/overlays/element-web/default.nix
index 5fb8ab1d..9d0e3516 100644
--- a/overlays/element-web/default.nix
+++ b/overlays/element-web/default.nix
@@ -5,7 +5,7 @@ final: prev: {
       cat ${./user.css} >> $bundlecss
       bundlejs=$(find . -name 'vendors~init.js')
       sed -i 's/return n.room.roomId===e||n.isUnread}/return n.room.roomId===e||n.hasUnreadCount}/' $bundlejs
-      cp ${./orville_communicator.opus} media/message.ogg
+      #cp ${./orville_communicator.opus} media/message.ogg
     '';
   });
 }
diff --git a/overlays/neovim.nix b/overlays/neovim.nix
deleted file mode 100644
index 5385f57e..00000000
--- a/overlays/neovim.nix
+++ /dev/null
@@ -1,7 +0,0 @@
-self: super: {
-  neovim = super.neovim.override {
-    vimAlias = true;
-    withPython3 = true;
-    withPython = false;
-  };
-}