Maven Central publishing via com.vanniktech.maven.publish 0.36.0; artifacts are signed with GPG and uploaded directly to the Central Portal. CI publishes automatically on version tags when the signing credentials are configured. Javadoc hosted on javadoc.io and linked from the README badge. Real audio round-trip tests across all Opus-supported sample rates (8 / 16 / 48 kHz) using raw PCM test resources derived from a 3-second stereo reference recording. External packet decoder compatibility tests: 151 Opus packets pre-encoded by ffmpeg verify decoder correctness independently of the panopus encoder. tools/extract_opus_packets.py — extracts raw Opus audio packets from an Ogg container into a simple length-prefixed binary format for use as test resources.