Persist /var/log in voyager

hosts/voyager/default.nix

@@ -44,6 +44,10 @@
           # Some people use /nix/persist/system for this, leaving persistent files in /nix subvolume
           # I much prefer using a standalone subvolume for this though.
           persistentMountPoint = "/persist";
+
+          extraDirectories = [
+            "/var/log"
+          ];
         };
 
         # Configure automatic root subvolume wiping on boot from initrd

system/shared/impermanence/root.nix

@@ -32,6 +32,9 @@ in
         "/etc/nixos" # NixOS configuration source
         "/etc/NetworkManager/system-connections" # saved network connections
         "/var/db/sudo" # keeps track of who got the sudo lecture already
+        # "/var/log" # I sometimes use a subvolume for this, added manually if not
+        "/var/lib/nixos"
+        "/var/lib/bluetooth"
         "/var/lib/systemd/coredump" # captured coredumps 
       ] ++ cfg.extraDirectories;