diff --git a/assets/remote.html b/assets/remote.html
index 03645d3..9bee579 100644
--- a/assets/remote.html
+++ b/assets/remote.html
@@ -12,7 +12,10 @@
   <div id="app">
     <h3>极简手机远程控制 <small style="color: gray" v-text="message"></small></h3>
     <div style="margin: 5px 0px">
-      <button @click="refreshImg">刷新画面</button>
+      <span style="background-color:blueviolet; color:whilte" v-show="readonly">ReadOnly</span>
+      <button @click="refreshImg">刷新画面 fps: <span v-text="fps.toFixed(1)"></span></button>
+      <button @click="keyevent('HOME')">HOME</button>
+      <input v-model="command" placeholder="shell command" v-on:keyup.enter="runCommand">
     </div>
     <div>
       <img ref="display" style="border: 1px solid blue;" />
@@ -109,6 +112,10 @@ <h3>极简手机远程控制 <small style="color: gray" v-text="message"></small
         canvas: null,
         img: null,
         rotation: 0,
+        command: "",
+        readonly: true,
+        fps: 0,
+        periodImageCount: 0,
       },
       mounted() {
         const img = this.img = this.$refs.display
@@ -121,8 +128,37 @@ <h3>极简手机远程控制 <small style="color: gray" v-text="message"></small
         // }
         this.syncDisplay()
         this.syncTouchpad()
+
+        // calculate fps
+        setInterval(()=>{
+          this.fps = this.periodImageCount / 0.5
+          this.periodImageCount = 0
+        }, 500)
       },
       methods: {
+        keyevent(key) {
+          return $.ajax({
+            url: "/shell",
+            method: "post",
+            data: {
+              command: "input keyevent " + key,
+            }
+          })
+        },
+        runCommand() {
+          return $.ajax({
+            url: "/shell",
+            method: "post",
+            data: {
+              command: this.command,
+            },
+            dataType: "json",
+          }).then((resp) => {
+            console.log(this.command + ": " + resp.output)
+            this.command = ""
+            alert(resp.output)
+          })
+        },
         refreshImg() {
           this.notify("image loading ...")
           this.img.src = `http://${location.host}/screenshot?t=${new Date().getTime()}`
@@ -169,6 +205,7 @@ <h3>极简手机远程控制 <small style="color: gray" v-text="message"></small
           let ws = new WebSocket("ws://" + location.host + "/minitouch")
 
           ws.onopen = (ret) => {
+            this.readonly = false
             console.log("minitouch connected")
             ws.send(JSON.stringify({ // touch reset, fix when device is outof control
               operation: "r",
@@ -180,13 +217,15 @@ <h3>极简手机远程控制 <small style="color: gray" v-text="message"></small
           }
 
           ws.onclose = () => {
+            this.readonly = true
             console.log("minitouch closed")
             element.removeEventListener("mousedown", mouseDownListener)
             this.notify("minitouch closed")
           }
         },
         syncDisplay(canvas) {
-          let ws = new WebSocket('ws://' + location.host + "/minicap/broadcast")
+          let ws = new WebSocket('ws://' + location.host + "/minicap")
+          
           ws.onclose = () => {
             var warn = document.createElement("div")
             warn.innerText = "Websocket closed, Refresh to reload."
@@ -199,6 +238,7 @@ <h3>极简手机远程控制 <small style="color: gray" v-text="message"></small
           }
           ws.onmessage = (message) => {
             if (message.data instanceof Blob) {
+              this.periodImageCount += 1 // help for calculate fps
               let blob = new Blob([message.data], {
                 type: 'image/jpeg'
               })
diff --git a/httpserver.go b/httpserver.go
index 9e70521..dc0543f 100644
--- a/httpserver.go
+++ b/httpserver.go
@@ -965,82 +965,9 @@ func (server *Server) initHTTPServer() {
 		}
 	}).Methods("PUT")
 
-	m.HandleFunc("/minicap/broadcast", broadcastWebsocket()).Methods("GET")
-
-	m.HandleFunc("/minicap", singleFightNewerWebsocket(func(w http.ResponseWriter, r *http.Request, ws *websocket.Conn) {
-		ctx := r.Context()
-		defer ws.Close()
-
-		const wsWriteWait = 10 * time.Second
-		wsWrite := func(messageType int, data []byte) error {
-			ws.SetWriteDeadline(time.Now().Add(wsWriteWait))
-			return ws.WriteMessage(messageType, data)
-		}
-		wsWrite(websocket.TextMessage, []byte("restart @minicap service"))
-		if err := service.Restart("minicap"); err != nil && err != cmdctrl.ErrAlreadyRunning {
-			wsWrite(websocket.TextMessage, []byte("@minicap service start failed: "+err.Error()))
-			return
-		}
-
-		wsWrite(websocket.TextMessage, []byte("dial unix:@minicap"))
-		log.Printf("minicap connection: %v", r.RemoteAddr)
-		dataC := make(chan []byte, 10)
-
-		go func() {
-			defer close(dataC)
-			retries := 0
-			for {
-				if retries > 10 {
-					log.Println("unix @minicap connect failed")
-					dataC <- []byte("@minicap listen timeout, possibly minicap not installed")
-					break
-				}
-				conn, err := net.Dial("unix", "@minicap")
-				if err != nil {
-					retries++
-					log.Printf("dial @minicap err: %v, wait 0.5s", err)
-					select {
-					case <-ctx.Done():
-						return
-					case <-time.After(500 * time.Millisecond):
-					}
-					continue
-				}
-				dataC <- []byte("rotation " + strconv.Itoa(deviceRotation))
-				retries = 0 // connected, reset retries
-				if er := translateMinicap(conn, dataC, ctx); er == nil {
-					conn.Close()
-					log.Println("transfer closed")
-					break
-				} else {
-					conn.Close()
-					log.Println("minicap read error, try to read again")
-				}
-			}
-		}()
-		go func() {
-			for {
-				if _, _, err := ws.ReadMessage(); err != nil {
-					break
-				}
-			}
-		}()
-		for data := range dataC {
-			if string(data[:2]) == "\xff\xd8" { // jpeg data
-				if err := wsWrite(websocket.BinaryMessage, data); err != nil {
-					break
-				}
-				if err := wsWrite(websocket.TextMessage, []byte("data size: "+strconv.Itoa(len(data)))); err != nil {
-					break
-				}
-			} else {
-				if err := wsWrite(websocket.TextMessage, data); err != nil {
-					break
-				}
-			}
-		}
-		log.Println("stream finished")
-	})).Methods("GET")
+	minicapHandler := broadcastWebsocket()
+	m.HandleFunc("/minicap/broadcast", minicapHandler).Methods("GET")
+	m.HandleFunc("/minicap", minicapHandler).Methods("GET")
 
 	// TODO(ssx): perfer to delete
 	// FIXME(ssx): screenrecord is not good enough, need to change later