pwalarmd: init at 0.1.0

This patch adds pwalarmd, a daemon which provides alarm clock
services with custom notification support and live command-line
configuration editing (achieved through pwalarmctl, which will
be requested for addition separately).

This patch does not add a service file, as pwalarmd is meant to
be run in user mode. Home-Manager support will be added separately
later for running pwalarmd under systemd/with declarative
configuration.

Signed-off-by: Amy Parker <amy@amyip.net>

pkgs/by-name/pw/pwalarmd/package.nix

@@ -0,0 +1,37 @@
+{ lib
+, fetchFromGitHub
+, rustPlatform
+, pkg-config
+, alsa-lib
+}:
+
+rustPlatform.buildRustPackage rec {
+  pname = "pwalarmd";
+  version = "0.1.0";
+
+  nativeBuildInputs = [ pkg-config ];
+  buildInputs = [ alsa-lib ];
+
+  src = fetchFromGitHub {
+    owner = "amyipdev";
+    repo = "pwalarmd";
+    rev = "v${version}";
+    hash = "sha256-xoC1PtDQjkvoWb9x8A43ITo6xyYOv9hxH2pxiZBBvKI=";
+  };
+
+  cargoHash = "sha256-cRAFnmgvzWLFAjB7H1rU4FdxMwm0J6d76kdFPoXpPMw=";
+
+  meta = {
+    description = "Background CLI-based alarm system for *nix";
+    longDescription = ''
+      pwalarmd is a command-line (daemon-based) alarm system.
+      It has extensive configuration and personalization, PulseAudio
+      and PipeWire support, and supports live configuration changes.
+    '';
+    mainProgram = "pwalarmd";
+    license = lib.licenses.gpl2Only;
+    platforms = lib.platforms.all;
+    badPlatforms = lib.platforms.darwin;
+    maintainers = with lib.maintainers; [ amyipdev ];
+  };
+}