tomat: init at 2.3.0

Init tomat at 2.3.0 (https://github.com/jolars/tomat). This is a
server-client application that feeds information to status bars like
waybar and i3status-rust.

pkgs/by-name/to/tomat/package.nix

@@ -0,0 +1,46 @@
+{
+  lib,
+  rustPlatform,
+  fetchFromGitHub,
+  pkg-config,
+  alsa-lib,
+}:
+
+rustPlatform.buildRustPackage rec {
+  pname = "tomat";
+  version = "2.3.0";
+
+  src = fetchFromGitHub {
+    owner = "jolars";
+    repo = "tomat";
+    tag = "v${version}";
+    hash = "sha256-lkNBcTn7uXWifIVNoXmggPy+UjozL5YqVYorH9XAejo=";
+  };
+
+  cargoHash = "sha256-jBpZyNfsJKchJnKwWJQeVavj0Yog83QrCM8kOJFVugg=";
+
+  nativeBuildInputs = [
+    pkg-config
+  ];
+
+  buildInputs = [
+    alsa-lib
+  ];
+
+  checkFlags = [
+    # Skip tests that require access to file system locations not available during Nix builds
+    "--skip=timer::tests::test_icon_path_creation"
+    "--skip=timer::tests::test_notification_icon_config"
+    "--skip=integration::"
+  ];
+
+  meta = {
+    description = "Pomodoro timer for status bars";
+    homepage = "https://github.com/jolars/tomat";
+    changelog = "https://github.com/jolars/tomat/blob/${src.rev}/CHANGELOG.md";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ jolars ];
+    mainProgram = "tomat";
+    platforms = lib.platforms.linux;
+  };
+}