Open-source. Native. Cross-platform. Remote desktop that feels local.

One C++20 core runs everywhere — Windows to iPhone to a Chrome tab — zero protocol rewrites. Fast and raw enough to actually play games remotely, which ordinary remote desktop tools can't pull off.

• 💻 Work — run Claude Code, VS Code, or builds on your home PC from a weak laptop or an iPad at a café.
• 🌐 Anything — drive Chrome, Office, or PC-only software from any device.
• 🎮 Games — 60 fps, relative mouse + DirectInput scancodes, F9 pointer lock.
• 🖥️ Multi-monitor — share one or several displays, each as its own session.

🪟 Windows & 🍎 macOS — grab a single .exe / .dmg from Releases — no install, no setup. On Windows, sharing prompts for admin once and the app configures the firewall by itself.

🐧 Ubuntu — a single binary from Releases. To connect and view, that is all — it links only against GTK3, PipeWire and libva, which a stock Ubuntu 22.04+ desktop already has, and the H.264 decoder is compiled in:

chmod +x deskhub && ./deskhub

To share this machine's screen you need three more things — Linux gives none of them away by default:

# 1. Portal backend — on Wayland an app cannot read the screen; the portal asks for you.
sudo apt install xdg-desktop-portal xdg-desktop-portal-gnome   # KDE: -kde · sway/wlroots: -wlr

# 2. VA-API driver — H.264 is encoded on the GPU, there is no software fallback.
sudo apt install va-driver-all vainfo        # NVIDIA also needs: nvidia-vaapi-driver
vainfo | grep -E 'H264.*Enc'                 # must print ≥1 line, or this machine cannot host

# 3. Write access to /dev/uinput — how mouse and keyboard get injected.
echo 'KERNEL=="uinput", MODE="0660", GROUP="input", OPTIONS+="static_node=uinput"' \
  | sudo tee /etc/udev/rules.d/60-deskhub-uinput.rules
sudo udevadm control --reload-rules && sudo udevadm trigger
sudo usermod -aG input "$USER"               # then LOG OUT and back in

Building from source? Step 3 is just make setup-linux-permissions. If you enabled ufw, also sudo ufw allow 47777/udp. Without the permission grant the app still runs and can still view — it just cannot inject mouse/keyboard into this machine.

📱 iOS — install TestFlight, then join the beta: testflight.apple.com/join/7qY7wgpd

🤖 Android — direct APK from Releases, or join the Play beta — three steps, same Google account as your phone's Play Store:

1. Join the tester group: groups.google.com/g/deskhub-test
2. Become a tester: play.google.com/apps/testing/com.manhpham.deskhub
3. Install (give Play a few minutes to sync): play.google.com/store/apps/details?id=com.manhpham.deskhub — then please keep it installed 14+ days (Google's requirement to go public).

Using it: on desktop, Share picks the display(s) to expose; Connect takes the other machine's IP (port is always UDP 47777) — whoever connects gets mouse and keyboard, there is no view-only mode. Over the Internet: run Tailscale on both machines and use the 100.x.y.z IP. On mobile the video frame is a trackpad: drag = move, tap = click, hold-drag = drag, Keys = virtual keyboard.

Build from source: make bootstrap then make build-<os> — every target is documented at the top of the Makefile. Bugs & feedback: issues — include your device model.

• Zero-copy end to end — capture straight into VRAM → NVENC → HW decode → render; the hot path never touches the CPU.
• Purpose-built UDP protocol — infinite GOP + on-demand IDR, XOR FEC, adaptive bitrate.
• Real input — relative mouse (Raw Input) + scancodes for DirectInput games; host's own mouse/keyboard always wins.
• Hybrid transport — native = UDP; web = QUIC/WebTransport with the same core compiled to WASM.

MIT — see LICENSE. Third-party components and their notices (including the statically linked LGPL build of FFmpeg in the Linux app) are listed in THIRD_PARTY_NOTICES.md.