--- a/utils/launch.sh
+++ b/utils/launch.sh
@@ -1,4 +1,4 @@
-#!/usr/bin/env bash
+#!/bin/ash
 
 # Copyright 2016 Joel Martin
 # Copyright 2016 Solly Ross
@@ -25,8 +25,8 @@
     exit 2
 }
 
-NAME="$(basename $0)"
-REAL_NAME="$(readlink -f $0)"
+NAME="$(basename "$0")"
+REAL_NAME="$(readlink -f "$0")"
 HERE="$(cd "$(dirname "$REAL_NAME")" && pwd)"
 PORT="6080"
 VNC_DEST="localhost:5900"
@@ -106,42 +106,11 @@
     echo "Warning: could not find self.pem"
 fi
 
-# try to find websockify (prefer local, try global, then download local)
-if [[ -e ${HERE}/websockify ]]; then
-    WEBSOCKIFY=${HERE}/websockify/run
-
-    if [[ ! -x $WEBSOCKIFY ]]; then
-        echo "The path ${HERE}/websockify exists, but $WEBSOCKIFY either does not exist or is not executable."
-        echo "If you intended to use an installed websockify package, please remove ${HERE}/websockify."
-        exit 1
-    fi
-
-    echo "Using local websockify at $WEBSOCKIFY"
-else
-    WEBSOCKIFY=$(which websockify 2>/dev/null)
-
-    if [[ $? -ne 0 ]]; then
-        echo "No installed websockify, attempting to clone websockify..."
-        WEBSOCKIFY=${HERE}/websockify/run
-        git clone https://github.com/kanaka/websockify ${HERE}/websockify
-
-        if [[ ! -e $WEBSOCKIFY ]]; then
-            echo "Unable to locate ${HERE}/websockify/run after downloading"
-            exit 1
-        fi
-
-        echo "Using local websockify at $WEBSOCKIFY"
-    else
-        echo "Using installed websockify at $WEBSOCKIFY"
-    fi
-fi
-
 echo "Starting webserver and WebSockets proxy on port ${PORT}"
-#${HERE}/websockify --web ${WEB} ${CERT:+--cert ${CERT}} ${PORT} ${VNC_DEST} &
-${WEBSOCKIFY} --web ${WEB} ${CERT:+--cert ${CERT}} ${PORT} ${VNC_DEST} &
+websockify --web ${WEB} ${CERT:+--cert ${CERT}} ${PORT} ${VNC_DEST} &
 proxy_pid="$!"
 sleep 1
-if ! ps -p ${proxy_pid} >/dev/null; then
+if [ -z "$proxy_pid" ] || ! ps -o pid= | grep -qw ${proxy_pid}; then
     proxy_pid=
     echo "Failed to start WebSockets proxy"
     exit 1