Version 22 - Release Notes: In this version, we have performed a deep technical refactor to comply with GNOME Shell best practices and address previous feedback regarding audio management and resource cleanup: Audio Migration (GStreamer): Replaced the basic sound player with a GStreamer playbin implementation. This allows for seamless gapless looping and, most importantly, provides an immediate stop of the audio stream when the alarm is dismissed, preventing the previous "queueing" or "lag" issue. Resource Management: Implemented Gst.State.NULL in both _stopAlarm and disable() methods to ensure no audio processes are left hanging when the extension is deactivated. Code Cleanup: Fixed redundant comments and improved indentation across extension.js, prefs.js, and stylesheet.css. Styling Consistency: Synchronized the GSchema double types with the UI spin buttons in prefs.js to ensure data integrity. Resource Optimization & Asset Management: High-Fidelity Assets: The extension now bundles a custom 7-segment TrueType font and a specifically encoded .ogg alarm sound. Both are stored locally within the extension's assets/ directory to comply with GNOME's privacy guidelines regarding external resources. Seamless Audio Loop: The audio handling logic in extension.js has been finely tuned to match the .ogg file's properties. By using GStreamer's seek_simple method on the message::eos signal, we ensure a perfect gapless loop that matches the edited waveform of the audio file. Memory Footprint: The use of local assets combined with GStreamer ensures that the extension does not increase the Shell's memory usage during long alarm periods, as the media pipeline is only initialized when needed and fully destroyed upon dismissal. "All included assets (audio and fonts) comply with their respective Creative Commons licenses. The audio file has been technically optimized for seamless looping within the GNOME Shell environment without violating the original licensing terms."

Line 12 `extension.js ` can crash the shell: https://gjs-docs.gnome.org/gst10~1.0/gst.is_initialized