quicnet 0.2.2

minimal peer-to-peer network protocol over QUIC
Documentation 
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#!/bin/bash
# remote-desktop - one command remote X11 over quicnet
#
# First time:  remote-desktop setup bkk12
# Then:        remote-desktop bkk12

set -e
SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
QUICNET="$(dirname "$SCRIPT_DIR")"
BIN="$QUICNET/target/release/examples/x11_proxy"

case "$1" in
setup)
    HOST="$2"
    [[ -z "$HOST" ]] && { echo "usage: $0 setup <host>"; exit 1; }

    # Build
    echo "Building..."
    (cd "$QUICNET" && cargo build --release --example x11_proxy 2>/dev/null)

    # Copy to remote
    echo "Copying to $HOST..."
    scp "$BIN" "$HOST:~/x11_proxy"
    ssh "$HOST" "chmod +x ~/x11_proxy"

    # Get remote peer ID
    echo ""
    echo "Getting $HOST peer ID..."
    PEER=$(ssh "$HOST" "timeout 2 ~/x11_proxy server :0 2>&1 || true" | grep "peer id:" | awk '{print $3}')

    mkdir -p ~/.quicnet
    echo "$PEER" > ~/.quicnet/${HOST}.peer

    echo ""
    echo "=== Setup complete ==="
    echo "$HOST peer ID: $PEER"
    echo ""
    echo "Now run: $0 $HOST"
    ;;

*)
    HOST="$1"
    [[ -z "$HOST" ]] && { echo "usage: $0 <host>  OR  $0 setup <host>"; exit 1; }

    PEER=$(cat ~/.quicnet/${HOST}.peer 2>/dev/null)
    [[ -z "$PEER" ]] && { echo "Run '$0 setup $HOST' first"; exit 1; }

    LOCAL_IP=$(ip route get 1.1.1.1 | awk '{print $7; exit}')

    echo "=== Remote desktop: $HOST ==="
    echo ""

    # Start Xephyr (windowed X server)
    if ! command -v Xephyr &>/dev/null; then
        echo "Install Xephyr: sudo pacman -S xorg-server-xephyr"
        exit 1
    fi

    echo "Starting Xephyr window..."
    Xephyr :1 -screen 1920x1080 -resizeable -title "bkk12" 2>/dev/null &
    sleep 1

    echo "Starting X11 proxy..."
    "$BIN" server :1 &
    sleep 1

    # Get our peer ID
    OUR_PEER=$("$BIN" server :99 2>&1 & PID=$!; sleep 0.5; kill $PID 2>/dev/null; wait $PID 2>/dev/null)
    OUR_PEER=$(echo "$OUR_PEER" | grep "peer id:" | awk '{print $3}')

    echo ""
    echo "=== Ready ==="
    echo ""
    echo "On $HOST run:"
    echo "  ~/x11_proxy client ${OUR_PEER}@${LOCAL_IP}:4433 && DISPLAY=:99 bspwm"
    echo ""
    echo "Or one-liner:"
    echo "  ssh $HOST \"~/x11_proxy client ${OUR_PEER}@${LOCAL_IP}:4433 & sleep 1 && DISPLAY=:99 bspwm\""
    echo ""
    read -p "Press Enter to run automatically on $HOST, or Ctrl+C to do it manually..."

    ssh -t "$HOST" "~/x11_proxy client ${OUR_PEER}@${LOCAL_IP}:4433 & sleep 1; DISPLAY=:99 bspwm"
    ;;
esac