diff --git a/modules/nixos/services/aria/default.nix b/modules/nixos/services/aria/default.nix
index 2d1b3e2..46fd8ee 100644
--- a/modules/nixos/services/aria/default.nix
+++ b/modules/nixos/services/aria/default.nix
@@ -72,5 +72,6 @@ in
     };
 
     # NOTE: unfortunately aria2 does not log connection failures for fail2ban
+    # FIXME: persistence?
   };
 }
diff --git a/modules/nixos/services/audiobookshelf/default.nix b/modules/nixos/services/audiobookshelf/default.nix
index 8c9719d..e4d03c2 100644
--- a/modules/nixos/services/audiobookshelf/default.nix
+++ b/modules/nixos/services/audiobookshelf/default.nix
@@ -35,5 +35,7 @@ in
         };
       };
     };
+
+    # FIXME: persistence?
   };
 }
diff --git a/modules/nixos/services/flood/default.nix b/modules/nixos/services/flood/default.nix
index b95bac5..e1a2b74 100644
--- a/modules/nixos/services/flood/default.nix
+++ b/modules/nixos/services/flood/default.nix
@@ -27,5 +27,7 @@ in
         inherit (cfg) port;
       };
     };
+
+    # FIXME: persistence?
   };
 }
diff --git a/modules/nixos/services/grocy/default.nix b/modules/nixos/services/grocy/default.nix
index 87927d6..4a3183e 100644
--- a/modules/nixos/services/grocy/default.nix
+++ b/modules/nixos/services/grocy/default.nix
@@ -36,5 +36,8 @@ in
       forceSSL = true;
       useACMEHost = config.networking.domain;
     };
+
+    # FIXME: backup
+    # FIXME: persistence
   };
 }
diff --git a/modules/nixos/services/mealie/default.nix b/modules/nixos/services/mealie/default.nix
index 96b9e14..4fa4a6a 100644
--- a/modules/nixos/services/mealie/default.nix
+++ b/modules/nixos/services/mealie/default.nix
@@ -71,5 +71,8 @@ in
         };
       };
     };
+
+    # FIXME: backup
+    # FIXME: persistence
   };
 }
diff --git a/modules/nixos/services/miniflux/default.nix b/modules/nixos/services/miniflux/default.nix
index 5104c8b..448e0af 100644
--- a/modules/nixos/services/miniflux/default.nix
+++ b/modules/nixos/services/miniflux/default.nix
@@ -48,5 +48,8 @@ in
         inherit (cfg) port;
       };
     };
+
+    # FIXME: backup
+    # FIXME: persistence
   };
 }
diff --git a/modules/nixos/services/pyload/default.nix b/modules/nixos/services/pyload/default.nix
index 88889bf..1e5ce61 100644
--- a/modules/nixos/services/pyload/default.nix
+++ b/modules/nixos/services/pyload/default.nix
@@ -54,5 +54,7 @@ in
     };
 
     # FIXME: fail2ban
+    # FIXME: backup
+    # FIXME: persistence
   };
 }
diff --git a/modules/nixos/services/tandoor-recipes/default.nix b/modules/nixos/services/tandoor-recipes/default.nix
index 48ad7a8..a404033 100644
--- a/modules/nixos/services/tandoor-recipes/default.nix
+++ b/modules/nixos/services/tandoor-recipes/default.nix
@@ -82,5 +82,8 @@ in
         };
       };
     };
+
+    # FIXME: backup
+    # FIXME: persistence
   };
 }
diff --git a/modules/nixos/services/vikunja/default.nix b/modules/nixos/services/vikunja/default.nix
index 6e7700f..262c199 100644
--- a/modules/nixos/services/vikunja/default.nix
+++ b/modules/nixos/services/vikunja/default.nix
@@ -99,5 +99,7 @@ in
         config.services.vikunja.settings.files.basepath
       ];
     };
+
+    # FIXME: persistence
   };
 }
diff --git a/modules/nixos/services/woodpecker/server/default.nix b/modules/nixos/services/woodpecker/server/default.nix
index adf533e..5d25284 100644
--- a/modules/nixos/services/woodpecker/server/default.nix
+++ b/modules/nixos/services/woodpecker/server/default.nix
@@ -61,5 +61,7 @@ in
         port = cfg.rpcPort;
       };
     };
+
+    # FIXME: persistence
   };
 }
diff --git a/modules/nixos/system/persist/default.nix b/modules/nixos/system/persist/default.nix
index 4c0682c..18302f3 100644
--- a/modules/nixos/system/persist/default.nix
+++ b/modules/nixos/system/persist/default.nix
@@ -60,6 +60,7 @@ in
       ++ (lib.optionals config.virtualisation.docker.enable [
         "/var/lib/docker"
       ])
+      # FIXME: podman
       ++ cfg.directories
       ;
     };