diff --git a/modules/hooks.nix b/modules/hooks.nix
index 08ad9ae3..b1eb9c86 100644
--- a/modules/hooks.nix
+++ b/modules/hooks.nix
@@ -80,6 +80,13 @@ in
         };
       alejandra =
         {
+          check =
+            mkOption {
+              type = types.bool;
+              description = lib.mdDoc "Check if the input is already formatted and disable writing in-place the modified content";
+              default = false;
+              example = true;
+            };
           exclude =
             mkOption {
               type = types.listOf types.str;
@@ -87,6 +94,34 @@ in
               default = [ ];
               example = [ "flake.nix" "./templates" ];
             };
+          package =
+            mkOption {
+              type = types.package;
+              description = lib.mdDoc "The `alejandra` package to use.";
+              default = "${tools.alejandra}";
+              example = "pkgs.alejandra";
+            };
+          quiet =
+            mkOption {
+              type = types.bool;
+              description = lib.mdDoc "Hide informational messages.";
+              default = false;
+              example = true;
+            };
+          silent =
+            mkOption {
+              type = types.bool;
+              description = lib.mdDoc "Hide error messages.";
+              default = false;
+              example = true;
+            };
+          threads =
+            mkOption {
+              type = types.nullOr types.int;
+              description = lib.mdDoc "Number of formatting threads to spawn.";
+              default = null;
+              example = 8;
+            };
         };
       deadnix =
         {
@@ -955,8 +990,18 @@ in
         {
           name = "alejandra";
           description = "The Uncompromising Nix Code Formatter.";
-          entry = with settings.alejandra;
-            "${tools.alejandra}/bin/alejandra ${if (exclude != [ ]) then "-e ${lib.escapeShellArgs (lib.unique exclude)}" else ""}";
+          entry =
+            let
+              cmdArgs =
+                mkCmdArgs (with settings.alejandra; [
+                  [ check " --check" ]
+                  [ (exclude != [ ]) " --exclude ${lib.escapeShellArgs (lib.unique exclude)}" ]
+                  [ (quiet && ! silent) " --quiet" ]
+                  [ silent " -qq" ]
+                  [ (threads != null) " --threads ${toString threads}" ]
+                ]);
+            in
+            "${settings.alejandra.package}/bin/alejandra${cmdArgs}";
           files = "\\.nix$";
         };