Implementation Plan

Current Cut Line

Mimir is now a C# app/runtime plus native reservoir project. The live stream machine must be direct-driver and native-buffer first:

src/Mimir.App hosts Aquarium Engine for windowing, rendering, and the D3D12 bridge.
src/Mimir.Runtime owns stream descriptors, source polling, direct push ingest, one rolling buffer per configured audio/video stream, and the synchronization hub Aquarium can inspect.
native/reservoir owns the lower native rolling-buffer invariant for Aquarium/Faust integration.
PowerShell/FFmpeg/SRT remains a bridge utility for LAN OBS feeds. It is not the synchronized program authority.

The old script stack is gone. Do not add a compatibility edge unless it protects a named invariant that the native runtime cannot protect yet.

Mimir public identity, branding, and Face memory.
Mimir.slnx with src/Mimir.App and src/Mimir.Runtime.
Aquarium host bootstrapping from Mimir.App.
MimirSynchronizationHub, MimirRollingStreamBuffer, stream descriptors, and IMimirStreamSource.
Configurable five-second default rolling buffers for local and network audio and video streams.
MimirNativeIngestStreamSource for direct push ingest into runtime buffers.
MimirProcessStreamSource for bridge/network command edges.
MimirVideoFrameDescriptor for dimensions, pixel format, stride, device timestamp, and native/GPU handle metadata.
IMimirVideoCaptureDriver and MimirVideoCaptureDriverSource as the live driver-facing seam for Leap, Media Foundation, DirectShow, libusb, LeapC, or shared texture capture.
native/reservoir with one shared-edge rolling buffer, typed views, C ABI, source-id hashing, producer helpers, and typed audio/render payload descriptors.
Windows bridge scripts for sender discovery/start/stop and simple OBS Media Source ingest.
Documentation for OBS receiver setup, native rebuild boundaries, the viable stream app, and the Mimir Face.

Audio and video may still traverse separate OBS/SRT endpoints during bridge testing so OBS can preserve independent controls.
Process-backed stream sources are only acceptable for network bridge feeds or diagnostics. Six-camera local ingest belongs behind direct capture drivers.
Calibration artifacts may remain on disk as evidence, but live state must be in memory inside Mimir/Aquarium/native runtime surfaces.

Implement concrete direct capture drivers for Leap stereo IR first, then the other cameras.
Feed those drivers into MimirVideoCaptureDriverSource and prove sustained frame cadence in the rolling buffers.
Add native audio capture workers for local mic, loopback, and network audio feeds.
Bind Aquarium UI to the synchronization hub so buffer depth, stream cadence, source timestamps, and output settings are visible and adjustable.
Move GPU feature extraction, fusion, material fitting, render budgeting, and Spout2 publication into Aquarium.
Move mic alignment, room suppression, voice separation, spatialization, and stem generation into Faust/native DSP.
Keep the OBS bridge witness ledger as evidence before expanding receiver machinery.