adds missing import

flake.lock

@@ -24,16 +24,16 @@
     "brew-src": {
       "flake": false,
       "locked": {
-        "lastModified": 1761551821,
-        "narHash": "sha256-N3Zj73TAxclhLGgADbPVwcVrhYIBKUgAxjfQuOXre6s=",
+        "lastModified": 1763638478,
+        "narHash": "sha256-n/IMowE9S23ovmTkKX7KhxXC2Yq41EAVFR2FBIXPcT8=",
         "owner": "Homebrew",
         "repo": "brew",
-        "rev": "8f6719274133c5bcc24c058c5a6bcbb3b0cd48b3",
+        "rev": "fbfdbaba008189499958a7aeb1e2c36ab10c067d",
         "type": "github"
       },
       "original": {
         "owner": "Homebrew",
-        "ref": "4.6.19",
+        "ref": "5.0.3",
         "repo": "brew",
         "type": "github"
       }
@@ -85,11 +85,11 @@
     },
     "flake-compat": {
       "locked": {
-        "lastModified": 1747046372,
-        "narHash": "sha256-CIVLLkVgvHYbgI2UpXvIIBJ12HWgX+fjA8Xf8PUmqCY=",
+        "lastModified": 1761588595,
+        "narHash": "sha256-XKUZz9zewJNUj46b4AJdiRZJAvSZ0Dqj2BNfXvFlJC4=",
         "owner": "edolstra",
         "repo": "flake-compat",
-        "rev": "9100a0f413b0c601e0533d1d94ffd501ce2e7885",
+        "rev": "f387cd2afec9419c8ee37694406ca490c3f34ee5",
         "type": "github"
       },
       "original": {
@@ -126,11 +126,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1762721397,
-        "narHash": "sha256-E428EuouA4nFTNlLuqlL4lVR78X+EbBIqDqsBFnB79w=",
+        "lastModified": 1765217760,
+        "narHash": "sha256-BVVyAodLcAD8KOtR3yCStBHSE0WAH/xQWH9f0qsxbmk=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "b8645b18b0f5374127bbade6de7381ef0b3d5720",
+        "rev": "e5b1f87841810fc24772bf4389f9793702000c9b",
         "type": "github"
       },
       "original": {
@@ -167,11 +167,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1763910938,
-        "narHash": "sha256-1P2UOQ9ILAKAqfLV8yfBuB8MxlTilOqFTDw33NCmDiE=",
+        "lastModified": 1765211814,
+        "narHash": "sha256-USI9biMhvWBs7hC9JlDS3/Oi/TlFNcYCszA5GT9gp3o=",
         "owner": "JakeStanger",
         "repo": "ironbar",
-        "rev": "bac7f76161c790e927392c1593bfd07481f6be37",
+        "rev": "222f5c55b655b627d0703cb05948fc61e09ab231",
         "type": "github"
       },
       "original": {
@@ -189,11 +189,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1752689277,
-        "narHash": "sha256-uldUBFkZe/E7qbvxa3mH1ItrWZyT6w1dBKJQF/3ZSsc=",
+        "lastModified": 1763384566,
+        "narHash": "sha256-r+wgI+WvNaSdxQmqaM58lVNvJYJ16zoq+tKN20cLst4=",
         "owner": "nix-community",
         "repo": "naersk",
-        "rev": "0e72363d0938b0208d6c646d10649164c43f4d64",
+        "rev": "d4155d6ebb70fbe2314959842f744aa7cabbbf6a",
         "type": "github"
       },
       "original": {
@@ -209,11 +209,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1762627886,
-        "narHash": "sha256-/QLk1bzmbcqJt9sU43+y/3tHtXhAy0l8Ck0MoO2+evQ=",
+        "lastModified": 1765065051,
+        "narHash": "sha256-b7W9WsvyMOkUScNxbzS45KEJp0iiqRPyJ1I3JBE+oEE=",
         "owner": "LnL7",
         "repo": "nix-darwin",
-        "rev": "5125a3cd414dc98bbe2c528227aa6b62ee61f733",
+        "rev": "7e22bf538aa3e0937effcb1cee73d5f1bcc26f79",
         "type": "github"
       },
       "original": {
@@ -228,11 +228,11 @@
         "brew-src": "brew-src"
       },
       "locked": {
-        "lastModified": 1761927470,
-        "narHash": "sha256-KsFDGRGD8j1R6TvJ4HkebKsh3HXLY0XazanLrhO3wqE=",
+        "lastModified": 1764473698,
+        "narHash": "sha256-C91gPgv6udN5WuIZWNehp8qdLqlrzX6iF/YyboOj6XI=",
         "owner": "zhaofengli",
         "repo": "nix-homebrew",
-        "rev": "3cae36b3a17b09a66435291619dce8cf2c4728ca",
+        "rev": "6a8ab60bfd66154feeaa1021fc3b32684814a62a",
         "type": "github"
       },
       "original": {
@@ -286,11 +286,11 @@
     },
     "nixpkgs_3": {
       "locked": {
-        "lastModified": 1762482733,
-        "narHash": "sha256-g/da4FzvckvbiZT075Sb1/YDNDr+tGQgh4N8i5ceYMg=",
+        "lastModified": 1764947035,
+        "narHash": "sha256-EYHSjVM4Ox4lvCXUMiKKs2vETUSL5mx+J2FfutM7T9w=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "e1ebeec86b771e9d387dd02d82ffdc77ac753abc",
+        "rev": "a672be65651c80d3f592a89b3945466584a22069",
         "type": "github"
       },
       "original": {

hosts/dnsc-machine/default.nix

@@ -57,8 +57,17 @@
     };
   };
 
+  # Device specific overlays
+  # Overlays for all devices are defined
+  # in modules/default.nix
+  nixpkgs.overlays = [
+    inputs.zellij-switch.overlays.default
+  ];
+
   # System Packages
-  environment.systemPackages = lib.mkAfter (with pkgs; []);
+  environment.systemPackages = lib.mkAfter (with pkgs; [
+    zellij-switch
+  ]);
 
   # Enable some services that do not need configuration
   services.openssh.enable = true;