add paperless-ngx docker stack

nixos/modules/backups.nix

@@ -37,6 +37,11 @@ let
         username: hedgedoc
         password: ''${HEDGEDOC_DATABASE_PASSWORD}
         format: tar
+      - name: paperless
+        hostname: lewis.dmz
+        username: paperless
+        password: ''${PAPERLESS_DATABASE_PASSWORD}
+        format: tar
     '';
   };
 in

nixos/modules/data-sharing.nix

@@ -13,6 +13,8 @@ let
     "/forgejo"
     "/kitchenowl/data"
     "/syncthing/config"
+    "/paperless-ngx/data"
+    "/paperless-ngx/redisdata"
   ];
   nfsExports = lib.strings.concatLines (
     builtins.map
@@ -73,6 +75,7 @@ in
         authentication = ''
           host	nextcloud	nextcloud	all	      md5
           host	hedgedoc	hedgedoc	all	      md5
+          host	paperless	paperless	all	      md5
         '';
       };
     };