fix: netbird - persist data

Author: ryan4yin

hosts/idols-ai/preservation.nix

@@ -72,11 +72,12 @@ in
       # "/var/lib/waydroid"
 
       # network
-      "/var/lib/tailscale"
-      "/var/lib/netbird-homelab" # netbird's homelab client
       "/var/lib/bluetooth"
       "/var/lib/NetworkManager"
       "/var/lib/iwd"
+      "/var/lib/tailscale"
+      "/var/lib/netbird-homelab" # netbird's homelab client
+      "/etc/netbird-homelab"
     ];
     files = [
       # auto-generated machine ID

modules/nixos/desktop/networking/netbird.nix

@@ -19,7 +19,7 @@
 #
 # Status Data:
 #   `journalctl -u netbird-homelab` shows netbird's logs
-#   netbird client store its data in /var/lib/netbird-homelab
+#   netbird client store its data in /var/lib/netbird-homelab & /etc/netbird-homelab
 #   which is already persistent across reboots(via preservation)
 #
 # References: