1FX
Simple workflow
Installed discovery, one selected effect and direct access to its native vendor interface.
Product roadmap · public stable latest stable
Stable Single Host. Durable serial Rack. Expand only without weakening the live-safety contract.
The roadmap is intentionally staged. New breadth matters only if realtime behavior, recovery, OBS integration, packaging and user workflow remain dependable enough for live use.
Stage 1
Safe VST3 Single Host — stable
The focused one-effect filter remains the simplest way to use a modern VST3 effect in OBS.
ISO
Isolation
VST3 runtime and scanner stay outside the OBS process, with state persistence and bounded recovery.
DRY
Fail-dry
A missing/late isolated wet result does not justify deliberately stalling OBS's realtime audio path.
Stage 2 · current stable
Safe VST3 Rack — stable and durable
The public serial Rack provides a compact helper-owned editor, real master controls and metering, durable working-state recall and split-component VST3 state safety.
RACK
Serial chain
Multiple effects with stable slots, add/replace/remove/reorder and bypass.
GUI
Graphical editor
A dedicated helper-owned Rack Editor with native vendor-editor orchestration and compact broadcast-oriented controls.
SAVE
Automatic recall + presets
The current working Rack survives normal OBS restarts automatically, while named presets remain independent reusable chains.
Current Rack reliability contract
Persistence must not weaken realtime safety.
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CRC-protected atomic working-session writes with last-known-good recovery.
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DSP-safe state capture without a realtime-required control mutex.
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Dry-first restore followed by atomic whole-generation publication.
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Split controller/processor VST3 edits synchronized before state capture.
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Storage failure is surfaced as Needs Attention rather than silent nonpersistent operation.
Stage 3 · future
Routing, sidechain and advanced audio buses
Potential future work includes explicit routing, sidechain inputs, richer VST3 buses, parallel paths where justified, stronger multichannel handling and Float64 fallback.
Stage 4 · future
MIDI and VST3 instruments
Instrument hosting needs a real event/timing model—MIDI input, event buses, note/controller timing, sustain/pitch/modulation, state recovery and low-latency monitoring. It is intentionally separate from today's effects-only product scope.
Long-term
A professional OBS live-audio platform without becoming a DAW-sized default UI.
Potential directions include scene-aware presets, macro control, richer diagnostics, compatibility intelligence, signed releases, broader platform support and live-performance features—only when the underlying reliability model is preserved.
Roadmap items are direction, not guaranteed dates. The project intentionally prefers evidence-backed releases over shipping feature count.
Release gate
What “stable” should continue to mean
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Deterministic lifecycle/state and regression coverage.
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Bounded realtime and failure/recovery behavior.
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Windows packaging, installer and supported OBS qualification.
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Representative real-machine VST3 evidence.
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Public docs, scope claims and downloads synchronized with the shipped product.