diff --git a/Dockerfile.dev b/Dockerfile.dev
index 44c7d19f..c8b89426 100644
--- a/Dockerfile.dev
+++ b/Dockerfile.dev
@@ -17,9 +17,6 @@
 #
 
 FROM debian:stretch
-ENV DEBIAN_FRONTEND noninteractive
-WORKDIR /app
-COPY . /app
 
 RUN apt update && apt-get install -y cmake git gcc-arm-none-eabi locales python python-pip
 RUN apt install -y libbz2-1.0 libncurses5 libz1 valgrind astyle clang libudev-dev python-urllib3 libssl1.0-dev
@@ -27,5 +24,5 @@ RUN apt install -y libbz2-dev libbz2-dev libbz2-1.0 libncurses5 libz1 valgrind a
 RUN pip install --prefix /usr/local  cpp-coveralls
 RUN locale-gen UTF-8
 ENV CC gcc
-RUN cd /app/ && mkdir docker-build && cd docker-build && cmake .. -DBUILD_TYPE=firmware -DUSE_SECP256K1_LIB=ON && make TEST=yes
-RUN sha256sum docker-build/bin/*
+
+CMD ["bash"]
diff --git a/Dockerfile.tests b/Dockerfile.tests
index 77318be6..79f6b525 100644
--- a/Dockerfile.tests
+++ b/Dockerfile.tests
@@ -21,7 +21,6 @@ ENV DEBIAN_FRONTEND noninteractive
 WORKDIR /app
 COPY . /app
 
-
 RUN gcc -v
 RUN clang -v
 ENV CC gcc
diff --git a/dockerdev.sh b/dockerdev.sh
new file mode 100755
index 00000000..f1056e49
--- /dev/null
+++ b/dockerdev.sh
@@ -0,0 +1,50 @@
+#!/bin/bash -e
+# Copyright 2018 Shift Devices AG
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null && pwd )"
+
+dockerdev () {
+    local container_image=shift/mcu-base
+    local container_name=mcu-dev
+
+    if ! docker images | grep -q $container_image; then
+        echo "No $container_image docker image found! Maybe you need to run 'docker build --tag $container_image -f Dockerfile.dev .'?" >&2
+        exit 1
+    fi
+
+    # If already running, enter the container.
+    if docker ps | grep -q $container_name; then
+        docker exec -it $container_name bash
+        return
+    fi
+
+    if docker ps -a | grep -q $container_name; then
+        docker rm $container_name
+    fi
+
+    local repo_path="$DIR"
+    docker run \
+           --detach \
+           --privileged -v /dev/bus/usb:/dev/bus/usb \
+           --interactive --tty \
+           --name=$container_name \
+           -v $repo_path:/app \
+           $container_image bash
+
+    # Call a second time to enter the container.
+    dockerdev
+}
+
+dockerdev