diff --git a/android/Dockerfile b/android/Dockerfile
index ac119a9..bd7bfe3 100644
--- a/android/Dockerfile
+++ b/android/Dockerfile
@@ -1,11 +1,4 @@
-FROM runmymind/docker-android-sdk:ubuntu-standalone-20230511
-
-ENV PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/opt/android-sdk-linux/cmdline-tools/latest/bin:/opt/android-sdk-linux/cmdline-tools/tools/bin:/opt/android-sdk-linux/tools/bin:/opt/android-sdk-linux/build-tools/32.0.0:/opt/android-sdk-linux/platform-tools:/opt/android-sdk-linux/emulator:/opt/android-sdk-linux/bin
-
-RUN sdkmanager "system-images;android-33;google_apis;x86_64"
-RUN echo no | avdmanager create avd -n virtual_dev -b google_apis/x86_64 -k "system-images;android-33;google_apis;x86_64"
-
-RUN apt-get update && apt-get install -y iproute2 iputils-ping iptables redsocks npm git
+FROM pre_android/ready
 
 EXPOSE 3000
 
diff --git a/android/conf/docker-entrypoint.sh b/android/conf/docker-entrypoint.sh
index 1470691..ea68137 100644
--- a/android/conf/docker-entrypoint.sh
+++ b/android/conf/docker-entrypoint.sh
@@ -1,14 +1,8 @@
-hashed_name=`openssl x509 -inform PEM -subject_hash_old -in /ca-cert.cer | head -1` 
-
-emulator -avd virtual_dev -writable-system -no-window -no-audio &
+bash /conf/start_culebra.sh	
 npm i -C /code
-cp /ca-cert.cer /$hashed_name.0
-bash /conf/install_cert.sh $hashed_name.0
-bash /conf/install_culebra.sh
 bash /conf/iptables_conf.sh
 redsocks -c /conf/redsocks.conf &
 bash /conf/wait_for_sd.sh
-#wait for cert to be installed before launching socket server
 node /code/index.js
 
 #tail -f /dev/null
diff --git a/android/conf/start_culebra.sh b/android/conf/start_culebra.sh
new file mode 100644
index 0000000..6ceeda8
--- /dev/null
+++ b/android/conf/start_culebra.sh
@@ -0,0 +1,15 @@
+rm -f /opt/android-sdk-linux/.android/avd/virtual_dev.avd/*.lock
+adb start-server
+emulator -avd virtual_dev -writable-system -no-window -no-audio &
+adb wait-for-device
+adb emu avd snapshot load configured
+adb wait-for-device
+
+export PATH=$PATH:/root/culebraDependencies
+cd /root/culebra
+./culebratester2 start-server &
+
+#wait for the server to start
+while ! curl http://localhost:9987/v2/uiDevice/screenshot > /dev/null 2> /dev/null; do   
+  sleep 0.1
+done
\ No newline at end of file
diff --git a/docker-compose.yaml b/docker-compose.yaml
index 100ac93..3481d48 100644
--- a/docker-compose.yaml
+++ b/docker-compose.yaml
@@ -20,7 +20,6 @@ services:
       - rent_gen_android
     volumes:
       - $PWD/android/conf:/conf
-      - $PWD/certificates/mitmproxy-ca-cert.cer:/ca-cert.cer
       - $PWD/android/code:/code
   http_server:
     build: ./http_server/
diff --git a/pre_android/Dockerfile b/pre_android/Dockerfile
new file mode 100644
index 0000000..4789670
--- /dev/null
+++ b/pre_android/Dockerfile
@@ -0,0 +1,10 @@
+FROM runmymind/docker-android-sdk:ubuntu-standalone-20230511
+
+ENV PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/opt/android-sdk-linux/cmdline-tools/latest/bin:/opt/android-sdk-linux/cmdline-tools/tools/bin:/opt/android-sdk-linux/tools/bin:/opt/android-sdk-linux/build-tools/32.0.0:/opt/android-sdk-linux/platform-tools:/opt/android-sdk-linux/emulator:/opt/android-sdk-linux/bin
+
+RUN sdkmanager "system-images;android-33;google_apis;x86_64"
+RUN echo no | avdmanager create avd -n virtual_dev -b google_apis/x86_64 -k "system-images;android-33;google_apis;x86_64"
+
+RUN apt-get update && apt-get install -y iproute2 iputils-ping iptables redsocks npm git
+
+CMD bash /preconf/docker-entrypoint.sh
diff --git a/pre_android/preconf/docker-entrypoint.sh b/pre_android/preconf/docker-entrypoint.sh
new file mode 100644
index 0000000..6cfe71c
--- /dev/null
+++ b/pre_android/preconf/docker-entrypoint.sh
@@ -0,0 +1,15 @@
+hashed_name=`openssl x509 -inform PEM -subject_hash_old -in /ca-cert.cer | head -1` 
+
+adb start-server
+emulator -avd virtual_dev -writable-system -no-window -no-audio &
+cp /ca-cert.cer /$hashed_name.0
+bash /preconf/install_cert.sh $hashed_name.0
+bash /preconf/install_culebra.sh
+
+adb emu avd snapshot save configured
+
+adb emu kill
+#to let the host know it finished installing
+install -m 777 /dev/null /preconf/finished
+
+tail -f /dev/null
\ No newline at end of file
diff --git a/android/conf/install_cert.sh b/pre_android/preconf/install_cert.sh
similarity index 100%
rename from android/conf/install_cert.sh
rename to pre_android/preconf/install_cert.sh
diff --git a/android/conf/install_culebra.sh b/pre_android/preconf/install_culebra.sh
similarity index 58%
rename from android/conf/install_culebra.sh
rename to pre_android/preconf/install_culebra.sh
index 336d1a1..fde18d5 100644
--- a/android/conf/install_culebra.sh
+++ b/pre_android/preconf/install_culebra.sh
@@ -1,3 +1,4 @@
+adb wait-for-device
 cd /root
 git clone https://github.com/dtmilano/CulebraTester2-public culebra
 git clone https://gist.github.com/dtmilano/4537110 culebraDependencies
@@ -6,10 +7,4 @@ export PATH=$PATH:/root/culebraDependencies
 cd culebra
 git checkout 4ce1987e7ec6ae627d8f33a1a3b59f684aff90c0
 echo "/opt/android-sdk-linux" >> local.properties
-./gradlew installDebug installDebugAndroidTest
-./culebratester2 start-server &
-
-#wait for the server to start
-while ! curl http://localhost:9987/v2/uiDevice/screenshot > /dev/null 2> /dev/null; do   
-  sleep 0.1
-done
\ No newline at end of file
+./culebratester2 install
\ No newline at end of file
diff --git a/start.mjs b/start.mjs
index c86e5e3..1e6ee3e 100644
--- a/start.mjs
+++ b/start.mjs
@@ -1,5 +1,9 @@
 import { promises as fs } from "fs";
 
+async function sleep(time) {
+	return new Promise((resolve) => setTimeout(resolve, time));
+}
+
 async function checkCertExistance() {
 	return await Promise.all([
 		fs.access("./certificates/mitmproxy-ca-cert.cer", fs.constants.R_OK),
@@ -34,7 +38,33 @@ async function generateCert() {
 	}
 
 	//kill docker container
-	await $`docker stop certGenerator`;
+	$`docker stop certGenerator`;
+}
+
+async function generatePreAndroid() {
+	await $`docker build -t pre_android pre_android`;
+	$`docker run --rm -v $PWD/certificates/mitmproxy-ca-cert.cer:/ca-cert.cer -v $PWD/pre_android/preconf:/preconf --device=/dev/kvm --name pre_android_cont pre_android &`;
+
+	console.log(
+		"installing tls certificate and culebra into the android pre-image"
+	);
+	//the way of knowing when the culebra install is creating a file in the shared volume
+	let finished = false;
+	while (!finished) {
+		try {
+			await fs.access(
+				"./pre_android/preconf/finished",
+				fs.constants.R_OK
+			),
+				$`rm -f ./pre_android/preconf/finished`;
+			finished = true;
+		} catch {
+			await sleep(100);
+		}
+	}
+
+	await $`docker commit pre_android_cont pre_android/ready`;
+	$`docker stop pre_android_cont`;
 }
 
 if (process.argv.length !== 4) throw new Error("expected an argument");
@@ -44,9 +74,21 @@ else if (process.argv[3] === "up") {
 	} catch {
 		await generateCert();
 	}
+
+	try {
+		await $`docker image inspect pre_android/ready > /dev/null 2> /dev/null`;
+	} catch {
+		await generatePreAndroid();
+	}
+
 	await $`docker compose build`;
 	await $`docker compose up`;
 } else if (process.argv[3] === "down") await $`docker compose down`;
 else if (process.argv[3] === "generateCert") {
 	generateCert();
-} else throw new Error("expected [up | down | generateCert ] as argument");
+} else if (process.argv[3] === "generatePreAndroid") {
+	generatePreAndroid();
+} else
+	throw new Error(
+		"expected [up | down | generateCert | generatePreAndroid ] as argument"
+	);