Platform

macOS & Windows

macOS (Apple Silicon and Intel) is the primary, hardware-tested target. Windows 10 / 11 x64 builds, installs (NSIS + portable) and is unit-tested; its DirectShow, NVENC / Quick Sync / AMF and window-chrome paths were cross-built from a Mac.

• Windows: pinned, checksum-verified ffmpeg.exe (dshow, libx264, h264_nvenc / qsv / amf); hardware encoders test-encoded once at startup
• Windows hardware verification is still pending — docs/WINDOWS.md lists exactly what to check on a first run
• Builds are unsigned for local use; Developer ID + notarization is a config change

Read the doc: docs/WINDOWS.md

4K streaming & recording

A 3840×2160 canvas with HEVC / AV1 encoders, platform ingest caps with sources (YouTube 4K via Enhanced RTMP, Twitch 1080p60, Kick / Facebook / TikTok 1080p), and an adaptive ladder 4K60 → 4K30 → 1440p → 1080p with hysteresis.

• Real capability probes: a 2 s test encode ranks encoders by achieved fps; Enhanced-RTMP mux test
• Record 4K / stream 1080p dual output; render-scale governor; 8 s upload test in pre-flight
• Pro and Business (output.4k); resolution.max 2160

Licensing: plans, trials, offline grace, device seats

Creator / Pro / Business share one entitlement map; every install and every new account gets a 14-day Creator trial (no Free tier); 7 days of offline grace after the last successful check; 2 / 5 / 25 device seats.

• Locked features show an upgrade card, never a dead button
• A running stream or recording is never interrupted by a licence check — lockout waits for idle
• Offline entitlement tokens signed with Ed25519; only the public key ships in the app
• Sign in under Settings → Account; tokens in the OS keychain via safeStorage

Read the doc: docs/licensing.md

Owner & admin tooling

An admin console over the licence API: customers, licences, devices, subscriptions, payments, trials, support, release feed, analytics and an audit log for every mutation.

• Suspend / reactivate / extend trial / adjust seats / reset devices / change plan — each requires an audit note
• Owner override in the desktop app unlocks every gate on the developer’s machine
• Release feed: publish a version and the download page picks it up

Read the doc: docs/COMMERCIAL.md

Reliability & security

Watchdogs, encoder reset → input restart → ffmpeg respawn, orphan reaping, atomic settings with a .bak and zod repair, a crash-isolated UI, and stream keys encrypted at rest and redacted from logs.

• contextIsolation + sandbox on, nodeIntegration off, every IPC payload validated with zod, CSP applied
• Ingest URLs restricted to rtmp:// rtmps:// srt://
• Display sleep blocked while live; background throttling disabled