enricobuehler
068033a140
Low-latency desktop and game streaming with first-class Linux and Windows hosts.
Run the host on a Linux or Windows PC and stream your desktop or games to a Mac, PC, phone, tablet or TV. Each client gets its own virtual display at its own native resolution and refresh rate, so a laptop at 1080p60 and a TV at 4K can stream from one box at once without rearranging your real monitors.
📖 docs.punktfunk.unom.io — How it works · Quick start · Support matrix (what works where) · Roadmap
💬 Discord · r/Punktfunk
🔒 Vulnerabilities go privately to security@punktfunk.com, not to an issue — SECURITY.md.
What makes it different
- Displays you configure, not just create. Keep a game's display alive across disconnects so a reconnect drops straight back in; make the stream your sole desktop or extend alongside your monitors; turn several devices into monitors of one desktop. Presets in the console — Virtual displays.
- A real virtual display on Windows, too. Linux uses per-compositor virtual outputs; Windows
gets the same on-the-fly display from Punktfunk's own signed IddCx driver (
pf-vdisplay) — no dummy HDMI plug, no Desktop Duplication or WGC screen-scraping, and it survives the secure desktop (UAC, lock screen). - GPU end to end. Frames reach the encoder with no CPU copies (dmabuf → CUDA/Vulkan → NVENC on Linux; NVENC/AMF/QSV/Media Foundation on Windows). On a wired link, PyroWave — an intra-only wavelet codec run as Vulkan compute — spends bandwidth to cut codec latency by an order of magnitude, and every frame is a keyframe, so loss costs one frame instead of a recovery round-trip.
- Two protocols, one process.
punktfunk/1is the native plane: QUIC control, a GF(2¹⁶) Leopard-RS FEC + AES-GCM data plane that breaks the ~1 Gbps FEC wall, mid-stream mode renegotiation.serve --gamestreamadditionally serves any Moonlight client — opt-in, trusted-LAN only, because GameStream has inherent on-path weaknesses. - A library that fills itself. Steam and non-Steam titles appear as a grid on every client, and plugins add their own sources — ROM Manager, Playnite, Ubisoft Connect, Battle.net, itch.io, Flatpak and more.
- Secure by default. One-time SPAKE2 PIN pairing, then pinned-identity reconnects. No accounts, no cloud. Hosts advertise over mDNS, so clients find them without typing an IP.
Install the host
One command on Linux (preview) — it detects your distro, adds the repo, installs the host and console, opens the firewall, and tells you how to pair:
curl -fsSL https://punktfunk.unom.io/install.sh | sh
On Windows 11 22H2+ it's a signed installer (host + virtual-display and gamepad drivers):
winget source add -n punktfunk https://winget.punktfunk.unom.io -t Microsoft.Rest
winget install unom.PunktfunkHost
Prefer to add the repo yourself? Every platform has a one-page guide — apt, dnf, pacman, the Bazzite
sysext, NixOS, SteamOS on-device build, and the Windows setup.exe:
/docs/install. Updating, rolling back and
uninstalling are /docs/updating and
/docs/uninstall.
Connect a client
| Streaming to… | Use |
|---|---|
| Mac | The Apple app — notarized DMG, or TestFlight |
| iPhone, iPad, Apple TV | The Apple app on the App Store |
| Linux desktop / laptop | punktfunk-client — Flatpak (any distro), or apt / rpm / pacman |
| Steam Deck | The Decky plugin in Gaming Mode; the Flatpak in Desktop Mode |
| Android phone or TV | The Android app on Google Play |
| Windows | Native punktfunk-client — signed installer (portable zip and MSIX too) |
| LG webOS TV | pf-webos, a community client in its own repo |
| Scripts and launchers | punktfunk, the headless CLI in the Linux client packages |
| Anything else | Moonlight over GameStream |
Every client discovers hosts automatically and does a one-time PIN pairing. Per-device steps: /docs/install-client.
Develop
Building, testing and contributing are in the developer docs: Architecture (crate map and design invariants) · Build from source · Testing · Contributing.
License
Licensed under either of
- Apache License, Version 2.0 (LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0)
- MIT license (LICENSE-MIT or https://opensource.org/licenses/MIT)
at your option — SPDX-License-Identifier: MIT OR Apache-2.0.
Contribution
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions. See CONTRIBUTING.md.
Third-party components
Punktfunk's own source is MIT/Apache-2.0. Shipped binaries additionally link third-party components
under their own (permissive) licenses — see THIRD-PARTY-NOTICES.txt
(regenerate with scripts/gen-third-party-notices.sh). Nothing links FFmpeg any more: host encode
went native in 2026-09, and the clients decode natively.
Trademarks
Punktfunk is an independent project and is not affiliated with, endorsed by, or sponsored by NVIDIA, Microsoft, Sony, Valve, or the Moonlight project. "GameStream", "Moonlight", "Xbox", "DualSense", "DualShock", and "PlayStation" are trademarks of their respective owners and are used here only to describe interoperability.