Noizefield today announced Audio Plugin Coder (APC) 1.5.1, an update to the open-source framework that is designed to help AI coding agents build real audio (VST/AU) plugins on JUCE 9 through a structured workflow.
APC guides users through setup, dream, plan, design, implementation, testing, and shipping, while keeping project state consistent across sessions. It is aimed at musicians, hobbyists, producers, and developers who want custom plugins without fighting tooling every session.
Version 1.5 focuses on a clearer project overview, broader AI-host support, a single CLI, and ways to improve plugins after they have shipped.
New in version 1.5 / 1.5.1:
- APC Hub – a live local dashboard in the browser. Run /apc-hub or node hub/server.js to see plugins, phases, design library, scripts, templates, tools, settings, and searchable docs. Settings can be edited from a simple form instead of hand-editing JSON. Read-only by default.
- Broader AI coding tool support – Codex is first-class (dedicated skill/plugin and commands, with optional cost-aware model routing: Luna, Terra, Sol, Astra). Cursor works out of the box with custom rules. OpenCode is fully wired with the same /apc-* commands as Claude Code and Kilo.
- Apc CLI – one cross-platform tool for version, paths, build, validate, backup, rollback, and status, covered by an automated test suite.
- /apc-patch and /apc-evolve – after shipping a plugin, open a focused bugfix round or a feature upgrade while version numbers and state stay consistent.
- Docs and release layout cleanup – rewritten docs, a single source of truth for the framework version, and ship packages landing in a clean release/ folder that honors configured paths.
- YouTube tutorial / walkthrough series covering the framework end to end.
APC 1.5.1 is free and open source (MIT framework; plugins inherit JUCE licensing).
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