Astodev

Launchpad-Mixxx-DJ! Play a full DJ set in Mixxx with a single Novation Launchpad MK2: two CDJ-style decks, mixer, and FX, with zero DJ-controller hardware required. One custom macOS app turns pad presses into Mixxx commands over MIDI and drives the Launchpad LEDs (green = up, red = down, yellow = one action per press). Two profiles: User 2 for decks (Deck A left, Deck B right: load/play/cue/sync plus gain, tempo, and filter knobs), User 1 for mixer and FX (channel faders, crossfader, mutes, FX mix/parameter and routing). Knobs and faders repeat at 1% per 20 ms with clamping; holds cancel cleanly on profile switch or disconnect. No Launchpad? The built-in on-screen emulator (double-clickable .app) drives Mixxx live through a CoreMIDI virtual port verified end to end.