v0.5.0

Vynull v0.5.0

This release is shaped by the first round of community hardware reports. Shoutouts to @kayrozen, @przemeklo82, and @hdelplan!
Thank you to everyone who answered the call for testers!

Changes

Plugging a rekordbox USB into Vynull now serves everything rekordbox wrote to it (#36 (comment)). Point --music-dir at a stick and your playlists appear on the decks and in the web UI, tracks carry rekordbox's own beat grids, waveforms and hot/memory cues, and the web UI and the players finally agree on which track is which - the web, the deck and the stick share one track-ID space. Startup is faster too: a stick's own database replaces the tag scan entirely.

A crash reported on the XDJ-AZ is fixed (Issue #37 PR #38): Vynull's colour waveforms could carry values real rekordbox never emits, and the AZ's firmware hard-restarts on them. Credit to the reporter, who isolated the exact bytes against a live deck - the fix is byte-for-byte what they validated, confirmed against two thousand rekordbox-analyzed tracks.

The stream overlay's scrolling waveform no longer drifts and jumps. The playhead is now anchored to the deck's beat packets - the ones that fire exactly on the beat - and small corrections glide instead of snapping, so the waveform tracks the music at any BPM and pitch.

Beat grids get a calibration fix that triples sub-10ms agreement with rekordbox's grids on our reference library, and - important for anyone who fixes a grid by hand - manual beat-grid edits now survive analysis cache upgrades instead of being silently reverted.

The web UI can now create memory cues, not just hot cues (Issue #46 PR #48) - a + MEM button next to + CUE, numbered the way rekordbox numbers them, so they flow to decks and USB exports like imported ones.

Upgrading re-analyzes your library once (lazily, as tracks are touched). The DIAG tab now captures the full startup log, so if
something goes wrong you can copy it straight from the browser - no more photographing terminals.

Hardware-verified on a CDJ-2000NXS2; the XDJ-AZ fix verified by its reporter on the affected hardware.

Commit log

• prolink: clamp PWV4 band bytes to 7 bits so the XDJ-AZ survives loading by @vynulldev in #38
• overlay: beat-accurate playhead so the scrolling waveform stops jumping by @vynulldev in #39
• pdb: serve a rekordbox USB properly and fix web UI diag log filters by @vynulldev in #42
• web: toolbar USB export sends a string source again by @vynulldev in #45
• analysis: re-trim tempogram latency to center the grid-phase peak by @vynulldev in #43
• memory cues: create from the web UI, survive the wire by @vynulldev in #48
• pre-release audit: test hygiene and README accuracy by @vynulldev in #47
• fix: various export bug fixes by @vynulldev in #49
• pdb: read the artist/album name offset from the row, not a hardcode by @vynulldev in #50

Full Changelog: v0.4.0...v0.5.0