diff --git a/docker/docker-compose.yml b/docker/docker-compose.yml
index 6294081..6c7019a 100644
--- a/docker/docker-compose.yml
+++ b/docker/docker-compose.yml
@@ -4,9 +4,9 @@ services:
  esp:
   image: iot.wiai:1337/esp8266
   build: ./esp
-  volumes:
+  devices:
    - /dev/ttyUSB0:/dev/ttyUSB0
-  env:
+  environment:
    - PORT=/dev/ttyUSB0
 
 
@@ -15,7 +15,7 @@ services:
   image: iot.wiai:1337/flask
   volumes:
    - ./src/:/flask/
-  env:
+  environment:
    - FLASK_APP=server.py
   ports:
-   - 5000:5000
\ No newline at end of file
+   - 5000:5000
diff --git a/docker/esp/Dockerfile b/docker/esp/Dockerfile
index 5f7d486..cba2f82 100644
--- a/docker/esp/Dockerfile
+++ b/docker/esp/Dockerfile
@@ -1,4 +1,4 @@
 FROM alpine:edge
-RUN apk --update --no-cache-dir add picocom esptool
+RUN echo "http://dl-cdn.alpinelinux.org/alpine/edge/testing/" >> /etc/apk/repositories && apk --update add picocom esptool
 ENV PORT /dev/ttyUSB0
-CMD ["picocom", "-b", "115200", "${PORT}"]
\ No newline at end of file
+CMD ["sh", "-c", "picocom -b 115200 ${PORT}"]
diff --git a/presentation/images/repl.png b/presentation/images/repl.png
new file mode 100644
index 0000000..4bc64b9
Binary files /dev/null and b/presentation/images/repl.png differ
diff --git a/presentation/presentation.tex b/presentation/presentation.tex
index 28923f7..13283da 100644
--- a/presentation/presentation.tex
+++ b/presentation/presentation.tex
@@ -179,6 +179,7 @@ Flashen:
 	\item \texttt{picocom -b 115200 /dev/ttyUSB0}
 	\item $n$ beherzte \textit{<ENTER>}-Drücke
 	\item Docker: \texttt{docker-compose run esp} (evtl. TTY anpassen)
+	\item[exit] Ctrl-a Ctrl-x
 \end{itemize}
 Windows:
 \begin{itemize}
@@ -193,7 +194,7 @@ Windows:
 
 \begin{frame}{REPL}
 \framesubtitle{Hello World!}
-%TODO: bild mit REPL (inkl ENTERs)
+\image{.7\textwidth}{repl}{REPL}{img:repl}
 \end{frame}
 
 
@@ -226,8 +227,21 @@ import webrepl_setup
 \end{frame}
 
 \subsection{Init}
-\begin{frame}{main.py}
+\begin{frame}[fragile]{main.py}
+	Wird beim starten ... gestartet
 	
+\begin{lstlisting}[caption={main.py},label=mainpy]
+def connect_wifi(ssid, passphrase):
+	#TODO ;)
+	pass
+
+def setup():
+	#TODO configure sensors, ...
+	pass
+
+connect_wifi()
+setup()
+\end{lstlisting}
 \end{frame}
 
 \subsection{Exkurs: Flask-Server}
@@ -250,6 +264,7 @@ Starten:
 	\item[||] FLASK\_APP=server.py flask run
 \end{itemize}
 \end{frame}
+
 \begin{frame}[fragile]{Daten übertragen}
 \begin{lstlisting}[caption={HTTP Requests},label=http]
 import urequests
@@ -325,9 +340,8 @@ d.humidity()
 	\begin{itemize}
 		\item Z.B. Callbacks von Tastern
 		\item pausieren main
-		\item dürf
+		\item dürfen keinen Speicher allozieren
 		\item Emergency exception buffer: \textit{micropython.alloc\_emergency\_exception\_buf(100)}
-		\item 
 	\end{itemize}
 	\cite{mp-interrupt}
 \end{frame}