move smb automount secrets to agenix

modules/hosts/nixos.nix

@@ -3,9 +3,20 @@
   self,
   config,
   ...
-}: {
-  flake.nixosModules.nixos-host = {pkgs, ...}: {
+}: let
+  flakeConfig = config;
+in {
+  flake.nixosModules.nixos-host = {
+    pkgs,
+    lib,
+    config,
+    ...
+  }: let
+    smbSecretFile = ../../secrets/smb-credentials.age;
+    hasSmbSecret = builtins.pathExists smbSecretFile;
+  in {
     imports = [
+      inputs.agenix.nixosModules.default
       ../../hardware-configuration.nix
     ];
 
@@ -19,7 +30,7 @@
     # Custom EDID override for Samsung 240Hz on DP-1
     boot.kernelParams = ["drm.edid_firmware=DP-1:edid/g80.bin"];
     hardware.firmware = [
-      (pkgs.runCommandNoCC "g80-edid-firmware" {} ''
+      (pkgs.runCommand "g80-edid-firmware" {} ''
         install -Dm444 ${../assets/edid/g80.bin} $out/lib/firmware/edid/g80.bin
       '')
     ];
@@ -69,7 +80,7 @@
     };
 
     # User account
-    users.users.${config.username} = {
+    users.users.${flakeConfig.username} = {
       isNormalUser = true;
       description = "Thomas Gouveia Lopes";
       extraGroups = ["networkmanager" "wheel"];
@@ -91,6 +102,59 @@
     # State version
     system.stateVersion = "25.11";
 
+    boot.supportedFilesystems = ["cifs"];
+
+    warnings = lib.optional (!hasSmbSecret) ''
+      SMB automount is disabled: missing ${toString smbSecretFile}.
+      Create it with agenix:
+      sudo env RULES=secrets/secrets.nix nix run github:ryantm/agenix -- -e secrets/smb-credentials.age -i /etc/ssh/ssh_host_ed25519_key
+      and set:
+      username=...
+      password=...
+      # optional
+      # domain=WORKGROUP
+    '';
+
+    age.identityPaths = ["/etc/ssh/ssh_host_ed25519_key"];
+    age.secrets."smb-credentials" = lib.mkIf hasSmbSecret {
+      file = smbSecretFile;
+      mode = "0400";
+      owner = "root";
+      group = "root";
+    };
+
+    fileSystems."/mnt/unraid-data" = lib.mkIf hasSmbSecret {
+      device = "//192.168.1.102/data";
+      fsType = "cifs";
+      options = [
+        "credentials=${config.age.secrets."smb-credentials".path}"
+        "uid=1000"
+        "gid=1000"
+        "iocharset=utf8"
+        "nofail"
+        "x-systemd.automount"
+        "x-systemd.idle-timeout=5min"
+        "_netdev"
+        "vers=3.0"
+      ];
+    };
+
+    fileSystems."/mnt/unraid-appdata" = lib.mkIf hasSmbSecret {
+      device = "//192.168.1.102/appdata";
+      fsType = "cifs";
+      options = [
+        "credentials=${config.age.secrets."smb-credentials".path}"
+        "uid=1000"
+        "gid=1000"
+        "iocharset=utf8"
+        "nofail"
+        "x-systemd.automount"
+        "x-systemd.idle-timeout=5min"
+        "_netdev"
+        "vers=3.0"
+      ];
+    };
+
     fileSystems."/mnt/endeavour" = {
       device = "/dev/disk/by-uuid/a32ca052-12a5-4355-bd3b-b4515d9ea4a5";
       fsType = "ext4";