FFmpeg -> MediaMTX -> HLS relay with runtime-configurable modes: - PLAYBACK_MODE: standard (mpegts), fmp4 (HEVC), llhls - INGEST_MODE: rtmp, rtsp - INGEST_AUDIO_MODE: aac, copy - Hourly playlist auto-refresh from upstream URL - Fullscreen video UI with collapsible sidebar, upstream-down banner - Same-origin HLS proxy for HTTPS deployments Tagged as the last HLS-based version before the mpegts.js (v2) rework.