diff --git a/modules/nixos/services/aria/default.nix b/modules/nixos/services/aria/default.nix
index acbf0b7..4946663 100644
--- a/modules/nixos/services/aria/default.nix
+++ b/modules/nixos/services/aria/default.nix
@@ -69,6 +69,8 @@ in
       };
     };
 
+    # FIXME: persistence?
+
     # NOTE: unfortunately aria2 does not log connection failures for fail2ban
   };
 }
diff --git a/modules/nixos/services/audiobookshelf/default.nix b/modules/nixos/services/audiobookshelf/default.nix
index 04ec8b9..9985a26 100644
--- a/modules/nixos/services/audiobookshelf/default.nix
+++ b/modules/nixos/services/audiobookshelf/default.nix
@@ -34,6 +34,8 @@ in
       };
     };
 
+    # FIXME: persistence?
+
     services.fail2ban.jails = {
       audiobookshelf = ''
         enabled = true
diff --git a/modules/nixos/services/drone/runner-docker/default.nix b/modules/nixos/services/drone/runner-docker/default.nix
index e53c608..1db263b 100644
--- a/modules/nixos/services/drone/runner-docker/default.nix
+++ b/modules/nixos/services/drone/runner-docker/default.nix
@@ -39,5 +39,7 @@ in
       extraGroups = [ "docker" ]; # Give access to the daemon
     };
     users.groups.drone-runner-docker = { };
+
+    # FIXME: persistence?
   };
 }
diff --git a/modules/nixos/services/drone/runner-exec/default.nix b/modules/nixos/services/drone/runner-exec/default.nix
index a9bb563..c30a1a2 100644
--- a/modules/nixos/services/drone/runner-exec/default.nix
+++ b/modules/nixos/services/drone/runner-exec/default.nix
@@ -63,5 +63,7 @@ in
       group = "drone-runner-exec";
     };
     users.groups.drone-runner-exec = { };
+
+    # FIXME: persistence?
   };
 }
diff --git a/modules/nixos/services/drone/server/default.nix b/modules/nixos/services/drone/server/default.nix
index a3a1e49..b5d5df7 100644
--- a/modules/nixos/services/drone/server/default.nix
+++ b/modules/nixos/services/drone/server/default.nix
@@ -50,5 +50,7 @@ in
         inherit (cfg) port;
       };
     };
+
+    # FIXME: persistence?
   };
 }
diff --git a/modules/nixos/services/fail2ban/default.nix b/modules/nixos/services/fail2ban/default.nix
index be5f7da..efb07c9 100644
--- a/modules/nixos/services/fail2ban/default.nix
+++ b/modules/nixos/services/fail2ban/default.nix
@@ -33,5 +33,7 @@ in
         bantime = "10m";
       };
     };
+
+    # FIXME: persistence?
   };
 }
diff --git a/modules/nixos/services/flood/default.nix b/modules/nixos/services/flood/default.nix
index f3fe90b..23154ed 100644
--- a/modules/nixos/services/flood/default.nix
+++ b/modules/nixos/services/flood/default.nix
@@ -28,6 +28,8 @@ in
       };
     };
 
+    # FIXME: persistence?
+
     # NOTE: unfortunately flood does not log connection failures for fail2ban
   };
 }
diff --git a/modules/nixos/services/grocy/default.nix b/modules/nixos/services/grocy/default.nix
index 9045b03..67de377 100644
--- a/modules/nixos/services/grocy/default.nix
+++ b/modules/nixos/services/grocy/default.nix
@@ -37,6 +37,9 @@ in
       useACMEHost = config.networking.domain;
     };
 
+    # FIXME: backup
+    # FIXME: persistence
+
     # NOTE: unfortunately grocy does not log connection failures for fail2ban
   };
 }
diff --git a/modules/nixos/services/komga/default.nix b/modules/nixos/services/komga/default.nix
index e1dc780..9412573 100644
--- a/modules/nixos/services/komga/default.nix
+++ b/modules/nixos/services/komga/default.nix
@@ -36,6 +36,8 @@ in
       };
     };
 
+    # FIXME: persistence?
+
     services.fail2ban.jails = {
       komga = ''
         enabled = true
diff --git a/modules/nixos/services/mealie/default.nix b/modules/nixos/services/mealie/default.nix
index 664d5ba..4eb6977 100644
--- a/modules/nixos/services/mealie/default.nix
+++ b/modules/nixos/services/mealie/default.nix
@@ -72,6 +72,9 @@ in
       };
     };
 
+    # FIXME: backup
+    # FIXME: persistence
+
     services.fail2ban.jails = {
       mealie = ''
         enabled = true
diff --git a/modules/nixos/services/miniflux/default.nix b/modules/nixos/services/miniflux/default.nix
index 400ae00..7bcfe30 100644
--- a/modules/nixos/services/miniflux/default.nix
+++ b/modules/nixos/services/miniflux/default.nix
@@ -49,6 +49,9 @@ in
       };
     };
 
+    # FIXME: backup
+    # FIXME: persistence
+
     services.fail2ban.jails = {
       miniflux = ''
         enabled = true
diff --git a/modules/nixos/services/nextcloud/collabora.nix b/modules/nixos/services/nextcloud/collabora.nix
index f8f42a7..dce1a99 100644
--- a/modules/nixos/services/nextcloud/collabora.nix
+++ b/modules/nixos/services/nextcloud/collabora.nix
@@ -46,5 +46,7 @@ in
         ];
       };
     };
+
+    # FIXME: persistence?
   };
 }
diff --git a/modules/nixos/services/pdf-edit/default.nix b/modules/nixos/services/pdf-edit/default.nix
index d59507b..73527d9 100644
--- a/modules/nixos/services/pdf-edit/default.nix
+++ b/modules/nixos/services/pdf-edit/default.nix
@@ -54,6 +54,8 @@ in
       };
     };
 
+    # FIXME: persistence?
+
     services.fail2ban.jails = {
       stirling-pdf = ''
         enabled = true
diff --git a/modules/nixos/services/pyload/default.nix b/modules/nixos/services/pyload/default.nix
index 7257d0f..1167509 100644
--- a/modules/nixos/services/pyload/default.nix
+++ b/modules/nixos/services/pyload/default.nix
@@ -53,6 +53,9 @@ in
       };
     };
 
+    # FIXME: backup
+    # FIXME: persistence
+
     services.fail2ban.jails = {
       pyload = ''
         enabled = true
diff --git a/modules/nixos/services/tandoor-recipes/default.nix b/modules/nixos/services/tandoor-recipes/default.nix
index 3447bee..6282769 100644
--- a/modules/nixos/services/tandoor-recipes/default.nix
+++ b/modules/nixos/services/tandoor-recipes/default.nix
@@ -83,6 +83,9 @@ in
       };
     };
 
+    # FIXME: backup
+    # FIXME: persistence
+
     # NOTE: unfortunately tandoor-recipes does not log connection failures for fail2ban
   };
 }
diff --git a/modules/nixos/services/vikunja/default.nix b/modules/nixos/services/vikunja/default.nix
index 2753da3..575ddab 100644
--- a/modules/nixos/services/vikunja/default.nix
+++ b/modules/nixos/services/vikunja/default.nix
@@ -100,6 +100,8 @@ in
       ];
     };
 
+    # FIXME: persistence
+
     # NOTE: unfortunately vikunja does not log connection failures for fail2ban
   };
 }
diff --git a/modules/nixos/services/woodpecker/agent-docker/default.nix b/modules/nixos/services/woodpecker/agent-docker/default.nix
index 79d3299..2e74b67 100644
--- a/modules/nixos/services/woodpecker/agent-docker/default.nix
+++ b/modules/nixos/services/woodpecker/agent-docker/default.nix
@@ -38,5 +38,7 @@ in
         ];
       };
     };
+
+    # FIXME: persistence?
   };
 }
diff --git a/modules/nixos/services/woodpecker/agent-exec/default.nix b/modules/nixos/services/woodpecker/agent-exec/default.nix
index 24161b0..4210242 100644
--- a/modules/nixos/services/woodpecker/agent-exec/default.nix
+++ b/modules/nixos/services/woodpecker/agent-exec/default.nix
@@ -62,5 +62,7 @@ in
         ];
       };
     };
+
+    # 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/printing/default.nix b/modules/nixos/system/printing/default.nix
index 0dfab0f..3e21b25 100644
--- a/modules/nixos/system/printing/default.nix
+++ b/modules/nixos/system/printing/default.nix
@@ -65,5 +65,7 @@ in
       # Allow resolution of '.local' addresses
       nssmdns4 = true;
     };
+
+    # FIXME: persistence?
   };
 }