fix(synergy): support dynamic synergyc binary path, Crostini DISPLAY fallback, and reverse SSH tunnel in fleet

provision-penguin

@@ -10,7 +10,7 @@ if ! ping -c 1 -W 2 "$PENGUIN_IP" &>/dev/null; then
     exit 1
 fi
 
-echo "[provision-penguin] Updating ~/bin and identity on penguin..."
+echo "[provision-penguin] Updating ~/bin, identity, and SuperCollider on penguin..."
 ssh -o ConnectTimeout=5 "kof@$PENGUIN_IP" '
 git -C ~/bin pull origin main
 sudo bash -c "cat << CONF > /etc/fleet_id
@@ -26,5 +26,6 @@ grep -q "bin-env" ~/.bashrc 2>/dev/null || echo "[ -f \"\$HOME/bin/bin-env\" ] &
 grep -q "bin-env" ~/.zshrc 2>/dev/null || echo "[ -f \"\$HOME/bin/bin-env\" ] && source \"\$HOME/bin/bin-env\"" >> ~/.zshrc
 
 ~/bin/fleet-id
+~/bin/setup-sc-node
 '
 echo "[provision-penguin] Complete."

synergy-client-connect

@@ -24,18 +24,37 @@ find_active_server() {
     return 1
 }
 
+# Ensure DISPLAY is set for graphical/XWayland environments (e.g. Crostini or systemd user services)
+export DISPLAY="${DISPLAY:-:0}"
+
+# Locate synergyc binary across standard paths
+SYNERGYC="$(command -v synergyc 2>/dev/null || true)"
+if [ -z "$SYNERGYC" ]; then
+    for candidate in "/usr/local/bin/synergyc" "/usr/bin/synergyc" "$HOME/.local/bin/synergyc"; do
+        if [ -x "$candidate" ]; then
+            SYNERGYC="$candidate"
+            break
+        fi
+    done
+fi
+
+if [ -z "$SYNERGYC" ]; then
+    echo "[synergy-connect] Error: synergyc binary not found in PATH or standard locations." >&2
+    exit 1
+fi
+
 # Determine crypto flag based on synergyc build (note: synergyc --help exits with code 3)
 CRYPTO_FLAG=""
-if (/usr/local/bin/synergyc --help 2>&1 || true) | grep -q -- '--disable-crypto'; then
+if ("$SYNERGYC" --help 2>&1 || true) | grep -q -- '--disable-crypto'; then
     CRYPTO_FLAG="--disable-crypto"
 fi
 
-echo "[synergy-connect] Starting dynamic Synergy client for '$CLIENT_NAME'..."
+echo "[synergy-connect] Starting dynamic Synergy client for '$CLIENT_NAME' using $SYNERGYC..."
 
 while true; do
     if ACTIVE_SERVER=$(find_active_server); then
         echo "[synergy-connect] Found active server at $ACTIVE_SERVER. Connecting..."
-        /usr/local/bin/synergyc -f $CRYPTO_FLAG --name "$CLIENT_NAME" "$ACTIVE_SERVER" || true
+        "$SYNERGYC" -f $CRYPTO_FLAG --name "$CLIENT_NAME" "$ACTIVE_SERVER" || true
         echo "[synergy-connect] Synergy client exited or disconnected. Probing again in 2s..."
     else
         echo "[synergy-connect] No reachable t520 server on Ethernet/WiFi/VPN. Retrying in 3s..."

synergy-fleet

@@ -4,6 +4,16 @@ set -euo pipefail
 
 cmd="${1:-status}"
 
+ssh_penguin() {
+    local remote_cmd="$1"
+    if ssh -o ConnectTimeout=2 kof@192.168.1.105 "$remote_cmd" 2>/dev/null; then
+        return 0
+    elif ssh -o ConnectTimeout=2 -p 2205 kof@boxC "$remote_cmd" 2>/dev/null; then
+        return 0
+    fi
+    return 1
+}
+
 case "$cmd" in
     start)
         echo "== Starting Synergy Server on t520 (Center) =="
@@ -17,7 +27,7 @@ case "$cmd" in
         ssh -o ConnectTimeout=3 boxC "systemctl --user start synergy-client" 2>/dev/null || echo "Warning: Could not start on boxC"
 
         echo "== Starting Synergy Client on penguin (Left-Bottom) =="
-        ssh -o ConnectTimeout=3 kof@192.168.1.105 "systemctl --user start synergy-client" 2>/dev/null || echo "Notice: penguin is offline / sleep"
+        ssh_penguin "systemctl --user start synergy-client" || echo "Notice: penguin is offline / sleep or SSH port not forwarded"
 
         echo ""
         "$0" status
@@ -28,7 +38,7 @@ case "$cmd" in
         systemctl --user stop synergy-server 2>/dev/null || true
         ssh -o ConnectTimeout=3 bazina "systemctl --user stop synergy-client" 2>/dev/null || true
         ssh -o ConnectTimeout=3 boxC "systemctl --user stop synergy-client" 2>/dev/null || true
-        ssh -o ConnectTimeout=3 kof@192.168.1.105 "systemctl --user stop synergy-client" 2>/dev/null || true
+        ssh_penguin "systemctl --user stop synergy-client" 2>/dev/null || true
         echo "All Synergy services stopped."
         ;;
 
@@ -47,7 +57,7 @@ case "$cmd" in
         ssh -o ConnectTimeout=2 bazina "systemctl --user is-active synergy-client 2>/dev/null" || echo "unreachable"
 
         echo -n "penguin (Client / Left-Bottom): "
-        ssh -o ConnectTimeout=2 kof@192.168.1.105 "systemctl --user is-active synergy-client 2>/dev/null" || echo "offline"
+        ssh_penguin "systemctl --user is-active synergy-client 2>/dev/null" || echo "offline / SSH closed"
 
         echo -n "boxC (Client / Right): "
         ssh -o ConnectTimeout=2 boxC "systemctl --user is-active synergy-client 2>/dev/null" || echo "unreachable"