Low-latency streaming & recording
A native, hardware-accelerated pipeline (NVENC / AMF / VideoToolbox / VA-API) built to keep glass-to-glass latency low and never drop frames.
Alpha · bytes in motion
stream-concern
A high-performance, low-latency engine for live streaming and recording — every frame and sample moving through a native, hardware-accelerated pipeline.
Built for bytes in motion
stream-concern is a Rust application: an egui/wgpuinterface over a native capture, encode and streaming engine. Here is what the alpha focuses on.
Multi-track audio mixer
Per-source gain, monitoring and multi-track capture, so every microphone and app lands on its own track for a clean post-production mix.
Syphon / NDI / PipeWire / virtual camera
Move video in and out of the app over the interchange your platform speaks — Syphon, NDI, PipeWire or a virtual camera — with no re-encode.
Join the alpha test
The alpha is invite-based. Add your email to the waitlist, or enter an access code from the team to unlock the download page right away.
Prefer a full page? The sign-up form also lives at /alpha.