Use lib.singleton when convenient

modules/home/programs/git.nix

@@ -23,8 +23,7 @@
           signByDefault = true;
         };
 
-        includes = [
-          {
+        includes = lib.singleton {
           condition = "gitdir:~/Projects/h-da/**";
           contents = {
             user = {
@@ -33,8 +32,7 @@
               signingkey = config.sops.secrets."ssh-key/code.fbi.h-da.de".path;
             };
           };
-          }
-        ];
+        };
       };
 
       ssh = {

modules/home/services/cliphist.nix

@@ -8,12 +8,10 @@
   options.custom.services.cliphist.enable = lib.mkEnableOption "";
 
   config = lib.mkIf config.custom.services.cliphist.enable {
-    assertions = [
-      {
+    assertions = lib.singleton {
       assertion = config.custom.programs.rofi.enable;
       message = "Cliphist requires Rofi.";
-      }
-    ];
+    };
 
     services.cliphist = {
       enable = true;

modules/system/meta/domains.nix

@@ -54,11 +54,9 @@ in
           )
           |> lib.concatStrings;
       in
-      [
-        {
+      lib.singleton {
         assertion = duplicateDomains == { };
         message = errorMessage;
-        }
-      ];
+      };
   };
 }

modules/system/web-services/freshrss.nix

@@ -23,12 +23,10 @@ in
   };
 
   config = lib.mkIf cfg.enable {
-    assertions = [
-      {
+    assertions = lib.singleton {
       assertion = lib'.isTailscaleDomain cfg.domain;
       message = "FreshRSS isn't configured with access controll.";
-      }
-    ];
+    };
 
     meta = {
       domains.list = [ cfg.domain ];

modules/system/web-services/gatus.nix

@@ -159,8 +159,7 @@ in
             success-threshold = 4;
             send-on-resolved = true;
           };
-          overrides = [
-            {
+          overrides = lib.singleton {
             group = "Monitoring";
             topic = "stork-atlas";
             url = "https://ntfy.sh";
@@ -168,8 +167,7 @@ in
               failure-threshold = 4;
               success-threshold = 2;
             };
-            }
-          ];
+          };
         };
         ui.default-sort-by = "group";
         maintenance = {

modules/system/web-services/privatebin.nix

@@ -47,12 +47,10 @@ in
         };
       };
 
-      nginx.virtualHosts.privatebin.listen = [
-        {
+      nginx.virtualHosts.privatebin.listen = lib.singleton {
         addr = "localhost";
         inherit (cfg) port;
-        }
-      ];
+      };
     };
 
     custom.persist.directories = [ config.services.privatebin.dataDir ];