diff --git a/.gitignore b/.gitignore
index 10d00b5..107de5d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 *.gz
+data/*
diff --git a/Dockerfile b/Dockerfile
index 91d08d6..ee8f98d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,13 @@
+FROM alpine:latest
+RUN wget https://github.com/dogecoin/dogecoin/releases/download/v1.10.0/dogecoin-1.10.0-linux64.tar.gz
+COPY sha512sum.txt /tmp/
+RUN sha512sum -c /tmp/sha512sum.txt
+
 FROM ubuntu:bionic
 RUN apt-get update && \
   DEBIAN_FRONTEND=noninteractive apt-get -y install libx11-xcb1 libx11-6 libxcb1 libfontconfig1 libfreetype6 xkb-data libdbus-1-3
-ADD dogecoin-1.10.0-linux64.tar.gz /opt
+COPY --from=0 dogecoin-1.10.0-linux64.tar.gz .
+RUN tar xf dogecoin-1.10.0-linux64.tar.gz -C /opt
 RUN find /opt/ -type f -name "dogecoin*" -exec ln -sv '{}' /usr/local/bin/ \;
 COPY launch /launch
 ENTRYPOINT sh /launch
diff --git a/README.md b/README.md
index 77f9058..8265fd6 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 ## dogecoin in docker
 
 ```
-docker-compose build && docker-compose run --rm
+docker-compose build && docker-compose run --rm dogecoin
 ```
diff --git a/data/.keep b/data/.keep
new file mode 100644
index 0000000..e69de29
diff --git a/docker-compose.yml b/docker-compose.yml
index b72a808..a5a2723 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -16,3 +16,5 @@ services:
       - /etc/machine-id:/etc/machine-id:ro
       - /tmp/.X11-unix:/tmp/.X11-unix:ro
       # - $XDG_RUNTIME_DIR/pulse:/run/user/1000/pulse
+      # Make .config/Dogecoin/Dogecoin-Qt.conf persistent
+      - ./data:/home/user
diff --git a/launch b/launch
index fefcbf2..4cef55c 100644
--- a/launch
+++ b/launch
@@ -4,6 +4,6 @@
 exec 2>&1
 
 [ -d /home/user ] || ARGS="-m"
-id user >/dev/null 2>&1 || useradd -s /bin/bash "${ARGS}" -d /home/user -u ${USER_ID:-1000} user
+id user >/dev/null 2>&1 || useradd -s /bin/bash ${ARGS} -d /home/user -u ${USER_ID:-1000} user
 
 su -l user -c "LANG=C.UTF-8 LC_ALL=C.UTF-8 dogecoin-qt"
diff --git a/sha512sum.txt b/sha512sum.txt
new file mode 100644
index 0000000..d2e1018
--- /dev/null
+++ b/sha512sum.txt
@@ -0,0 +1 @@
+c6a9f87658a72b1ad32973b2c5cec8faf64c7e18467c013782f5e808af78e140ed21329ca33189fda7e6848758a9e8e849071f5e0af374a2b09034ff8e794089  dogecoin-1.10.0-linux64.tar.gz