Desktop/NetworkManager: migrate secrets to sops-nix

flake.lock

@@ -524,11 +524,11 @@
     "secrets": {
       "flake": false,
       "locked": {
-        "lastModified": 1737970846,
-        "narHash": "sha256-+b44nvv+rKiRdABSHGaTLbp9ysRaHE+s/CuUsA9zNac=",
+        "lastModified": 1764987865,
+        "narHash": "sha256-9gporedK0k0t86x415hVhRdl756RsD9KUinOiuCqK4Y=",
         "ref": "refs/heads/main",
-        "rev": "d8262fb108d0810d21c5e098b54a105e867e72ce",
-        "revCount": 28,
+        "rev": "e945330fd68c693004ffd107e89b3d8f5d5a662e",
+        "revCount": 31,
         "type": "git",
         "url": "ssh://forgejo@git.toast003.xyz:4222/Toast/nix-secrets"
       },

roles/desktop/services/networkmanager.nix

@@ -5,8 +5,9 @@
 }: let
   tailscaleName = config.services.tailscale.interfaceName;
 in {
-  age.secrets = {
-    wifiPasswords.file = "${flakeSelf.inputs.secrets}/wifi-passwords.age";
+  sops.secrets.wifiPasswords = {
+    sopsFile = "${flakeSelf.inputs.secrets}/wifi-passwords.env";
+    format = "dotenv";
   };
   networking.networkmanager = {
     enable = true;
@@ -14,7 +15,7 @@ in {
       "interface-name:${tailscaleName}"
     ];
     ensureProfiles = {
-      environmentFiles = [config.age.secrets.wifiPasswords.path];
+      environmentFiles = [config.sops.secrets.wifiPasswords.path];
       profiles = {
         "4g-modem" = {
           connection = {