sheldon: add module

modules/programs/sheldon.nix

@@ -0,0 +1,34 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.programs.sheldon;
+  tomlFormat = pkgs.formats.toml {};
+in {
+  meta.maintainers = pkgs.sheldon.meta.maintainers;
+
+  options.programs.sheldon = {
+    enable = mkEnableOption "sheldon";
+
+    package = mkOption {
+      type = types.package;
+      default = pkgs.sheldon;
+      defaultText = literalExpression "pkgs.sheldon";
+      description = "The package to use for the sheldon binary.";
+    };
+
+    settings = mkOption {
+      inherit (tomlFormat) type;
+      default = { };
+    };
+  };
+
+  config = mkIf cfg.enable {
+    home.packages = [ cfg.packages ];
+
+    xdg.configFile."sheldon/plugins.toml" = mkIf (cfg.settings != { }) {
+      source = tomlFormat.generate "sheldon-config" cfg.settings;
+    };
+  };
+}