diff --git a/cmd/olcrtc-cgo/main.go b/cmd/olcrtc-cgo/main.go
new file mode 100644
index 0000000..eb6cb1a
--- /dev/null
+++ b/cmd/olcrtc-cgo/main.go
@@ -0,0 +1,97 @@
+// Package main exports a small c-shared olcRTC connectivity API for desktop clients.
+package main
+
+import "C"
+import (
+	"github.com/openlibrecommunity/olcrtc/mobile"
+)
+
+const errorResult = C.longlong(-1)
+
+// Ping starts a short-lived olcRTC client, waits for its SOCKS listener,
+// performs an HTTP ping through it, and returns latency in milliseconds.
+// It returns -1 when arguments are invalid, startup fails, or the ping fails.
+//
+//export Ping
+func Ping(
+	carrierName *C.char,
+	transportName *C.char,
+	roomID *C.char,
+	clientID *C.char,
+	keyHex *C.char,
+	socksPort C.longlong,
+	timeoutMillis C.longlong,
+	pingURL *C.char,
+	vp8FPS C.longlong,
+	vp8BatchSize C.longlong,
+) C.longlong {
+	result, err := mobile.Ping(
+		goString(carrierName),
+		goString(transportName),
+		goString(roomID),
+		goString(clientID),
+		goString(keyHex),
+		goInt(socksPort),
+		goInt(timeoutMillis),
+		goString(pingURL),
+		goInt(vp8FPS),
+		goInt(vp8BatchSize),
+	)
+	if err != nil {
+		return errorResult
+	}
+	return C.longlong(result)
+}
+
+// Check starts a short-lived olcRTC client and returns elapsed milliseconds
+// once the transport and local SOCKS listener are ready. It returns -1 on error.
+//
+//export Check
+func Check(
+	carrierName *C.char,
+	transportName *C.char,
+	roomID *C.char,
+	clientID *C.char,
+	keyHex *C.char,
+	socksPort C.longlong,
+	timeoutMillis C.longlong,
+	vp8FPS C.longlong,
+	vp8BatchSize C.longlong,
+) C.longlong {
+	result, err := mobile.Check(
+		goString(carrierName),
+		goString(transportName),
+		goString(roomID),
+		goString(clientID),
+		goString(keyHex),
+		goInt(socksPort),
+		goInt(timeoutMillis),
+		goInt(vp8FPS),
+		goInt(vp8BatchSize),
+	)
+	if err != nil {
+		return errorResult
+	}
+	return C.longlong(result)
+}
+
+func goString(value *C.char) string {
+	if value == nil {
+		return ""
+	}
+	return C.GoString(value)
+}
+
+func goInt(value C.longlong) int {
+	const maxInt = int(^uint(0) >> 1)
+	const minInt = -maxInt - 1
+	if value > C.longlong(maxInt) {
+		return maxInt
+	}
+	if value < C.longlong(minInt) {
+		return minInt
+	}
+	return int(value)
+}
+
+func main() {}
diff --git a/script/srv.sh b/script/srv.sh
index 984fd96..6637d51 100755
--- a/script/srv.sh
+++ b/script/srv.sh
@@ -302,7 +302,7 @@ podman pull $IMAGE_NAME
 
 echo "[*] Building OlcRTC..."
 podman run --rm \
-    --add-host=host.containers.internal:host-gateway \
+    --network host \
     -v $WORK_DIR:/app:Z \
     -v $GOMOD_CACHE:/go/pkg/mod:Z \
     -v $GO_BUILD_CACHE:/root/.cache/go-build:Z \
@@ -318,7 +318,7 @@ fi
 if [ "$GEN_ROOM" = "1" ]; then
     echo "[*] Generating room via -mode gen..."
     ROOM_ID=$(podman run --rm \
-        --add-host=host.containers.internal:host-gateway \
+        --network host \
         -v $WORK_DIR:/app:Z \
         -w /app \
         $IMAGE_NAME \
@@ -350,6 +350,7 @@ fi
 
 echo "[*] Starting OlcRTC server..."
 podman run -d \
+    --network host \
     --name $CONTAINER_NAME \
     --add-host=host.containers.internal:host-gateway \
     --restart unless-stopped \