SIDLord

Standalone macOS-first instrument editor focused on GoatTracker-compatible workflow.

Status: Very early beta / lab project. Expect rough edges, partial implementations, and breaking changes while core behavior is still being explored.

Project handover / decisions log: WORKING_NOTES.md

Current iteration

This bootstrap iteration sets up:

• A native SwiftUI desktop shell (Sources/SIDLord)
• A separate C core module (Sources/SIDCore) with a stable API surface
• Live parameter editing (ADSR) and note trigger hooks (noteOn/noteOff)
• A low-latency audio output slice using a reSID backend for audible note playback
• CoreMIDI input listener for live note-on/note-off control (including hot-plug device refresh)
• GoatTracker instrument file load/save (.ins, GTI3/4/5 header support) with ADSR + first-wave/gate/vibrato metadata and table/pointer pass-through preservation

The core/UI split is intentional so future GUI/client surfaces can reuse the same engine.

Build

swift build
swift run SIDLord

Next steps

1. Improve reSID voice programming to better match GoatTracker instrument behavior.
2. Move MIDI routing from UI shell into a core-facing command layer.
3. Expand .ins compatibility from pass-through table/pointer preservation to editable table-aware workflows.