parallel: init module (#8240)

modules/misc/news/2025/11/2025-11-30_00-04-38.nix

@@ -0,0 +1,7 @@
+{
+  time = "2025-11-29T23:04:38+00:00";
+  condition = true;
+  message = ''
+    A new module is available: 'programs.parallel'.
+  '';
+}

modules/programs/parallel.nix

@@ -0,0 +1,42 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+let
+  inherit (lib)
+    mkIf
+    mkEnableOption
+    mkOption
+    types
+    ;
+
+  cfg = config.programs.parallel;
+in
+{
+  meta.maintainers = [ lib.maintainers.xavwe ];
+
+  options.programs.parallel = {
+    enable = mkEnableOption "GNU Parallel";
+
+    package = lib.mkPackageOption pkgs "parallel-full" { };
+
+    will-cite = mkOption {
+      type = types.bool;
+      default = false;
+      description = ''
+        Accept GNU Parallels citation policy: <https://www.gnu.org/software/parallel/parallel_design.html#citation-notice>
+      '';
+    };
+  };
+
+  config = mkIf cfg.enable {
+    home = {
+      packages = [ cfg.package ];
+      file.".parallel/will-cite" = mkIf cfg.will-cite {
+        text = "generated by home manager (programs.parallel.will-cite)";
+      };
+    };
+  };
+}

tests/modules/programs/parallel/default.nix

@@ -0,0 +1 @@
+{ parallel-example-config = ./example-config.nix; }

tests/modules/programs/parallel/example-config.nix

@@ -0,0 +1,10 @@
+{
+  programs.parallel = {
+    enable = true;
+    will-cite = true;
+  };
+
+  nmt.script = ''
+    assertFileExists home-files/.parallel/will-cite
+  '';
+}