diff --git a/doc/INSTALL-MANUAL-STEPS.md b/doc/INSTALL-MANUAL-STEPS.md
index a605ca4..4a5d3fb 100644
--- a/doc/INSTALL-MANUAL-STEPS.md
+++ b/doc/INSTALL-MANUAL-STEPS.md
@@ -31,14 +31,11 @@ docker network create --driver=overlay --attachable --opt encrypted cyphernodene
 git clone https://github.com/SatoshiPortal/cyphernode.git
 cd cyphernode/
 vi proxy_docker/env.properties
-vi proxy_docker/app/config/config.properties
 ```
 
 *Make sure user have same rpcuser and rpcpassword values as in bitcoin node's bitcoin.conf file (see below)*
 
 ```shell
-vi proxy_docker/app/config/watcher_btcnode_curlcfg.properties
-vi proxy_docker/app/config/spender_btcnode_curlcfg.properties
 vi cron_docker/env.properties
 vi pycoin_docker/env.properties
 ```
@@ -49,8 +46,8 @@ vi pycoin_docker/env.properties
 sudo useradd cyphernode
 mkdir ~/btcproxydb ; sudo chown -R cyphernode:debian ~/btcproxydb ; sudo chmod g+ws ~/btcproxydb
 docker build -t proxycronimg cron_docker/.
-docker build -t btcproxyimg --build-arg USER_ID=$(id -u cyphernode) --build-arg GROUP_ID=$(id -g cyphernode) proxy_docker/.
-docker build -t pycoinimg --build-arg USER_ID=$(id -u cyphernode) --build-arg GROUP_ID=$(id -g cyphernode) pycoin_docker/.
+docker build -t btcproxyimg proxy_docker/.
+docker build -t pycoinimg pycoin_docker/.
 ```
 
 ## Build images from Satoshi Portal's dockers repo
@@ -75,16 +72,16 @@ rpcwallet=ln01.dat
 
 ```shell
 vi config
-mkdir ~/.lightning
-cp config ~/.lightning/
-sudo chown -R cyphernode:debian ~/.lightning ; sudo chmod g+ws ~/.lightning
-sudo find ~/.lightning -type d -exec chmod 2775 {} \; ; sudo find ~/.lightning -type f -exec chmod g+rw {} \;
-docker build -t clnimg --build-arg USER_ID=$(id -u cyphernode) --build-arg GROUP_ID=$(id -g cyphernode) .
+mkdir ~/lndata
+cp config ~/lndata/
+sudo chown -R cyphernode:debian ~/lndata ; sudo chmod g+ws ~/lndata
+sudo find ~/lndata -type d -exec chmod 2775 {} \; ; sudo find ~/lndata -type f -exec chmod g+rw {} \;
+docker build -t clnimg .
 cd ../../bitcoin-core/
-mkdir ~/.bitcoin
-sudo chown -R cyphernode:debian ~/.bitcoin ; sudo chmod g+ws ~/.bitcoin
-sudo find ~/.bitcoin -type d -exec chmod 2775 {} \; ; sudo find ~/.bitcoin -type f -exec chmod g+rw {} \;
-docker build -t btcnode --build-arg USER_ID=$(id -u cyphernode) --build-arg GROUP_ID=$(id -g cyphernode) --build-arg CORE_VERSION="0.16.3" .
+mkdir ~/btcdata
+sudo chown -R cyphernode:debian ~/btcdata ; sudo chmod g+ws ~/btcdata
+sudo find ~/btcdata -type d -exec chmod 2775 {} \; ; sudo find ~/btcdata -type f -exec chmod g+rw {} \;
+docker build -t btcnode .
 ```
 
 ## Mount bitcoin data volume and make sure bitcoin configuration is ok
@@ -92,8 +89,8 @@ docker build -t btcnode --build-arg USER_ID=$(id -u cyphernode) --build-arg GROU
 (Watcher and spender is the same bitcoin node, with different wallets)
 
 ```shell
-sudo mount /dev/vdc ~/.bitcoin/
-vi ~/.bitcoin/bitcoin.conf
+sudo mount /dev/vdc ~/btcdata/
+vi ~/btcdata/bitcoin.conf
 ```
 
 *Make sure testnet, rpcuser and rpcpassword have the same value as in c-lightning node's bitcoin.conf file (see above)*
@@ -119,16 +116,16 @@ walletnotify=curl cyphernode:8888/conf/%s
 
 ```shell
 cd ~/cyphernode/
-docker stack deploy --compose-file docker-compose.yml cyphernodestack
+USER=`id -u cyphernode`:`id -g cyphernode` docker stack deploy --compose-file docker-compose.yml cyphernodestack
 ```
 
 ## Wait a few minutes and re-apply permissions
 
 ```shell
-sudo chown -R cyphernode:debian ~/.lightning ; sudo chmod g+ws ~/.lightning
-sudo chown -R cyphernode:debian ~/.bitcoin ; sudo chmod g+ws ~/.bitcoin
-sudo find ~/.lightning -type d -exec chmod 2775 {} \; ; sudo find ~/.lightning -type f -exec chmod g+rw {} \;
-sudo find ~/.bitcoin -type d -exec chmod 2775 {} \; ; sudo find ~/.bitcoin -type f -exec chmod g+rw {} \;
+sudo chown -R cyphernode:debian ~/lndata ; sudo chmod g+ws ~/lndata
+sudo chown -R cyphernode:debian ~/btcdata ; sudo chmod g+ws ~/btcdata
+sudo find ~/lndata -type d -exec chmod 2775 {} \; ; sudo find ~/lndata -type f -exec chmod g+rw {} \;
+sudo find ~/btcdata -type d -exec chmod 2775 {} \; ; sudo find ~/btcdata -type f -exec chmod g+rw {} \;
   ```
 
 ## Test the deployment
diff --git a/doc/INSTALL.md b/doc/INSTALL.md
index 8f451fc..c717abf 100644
--- a/doc/INSTALL.md
+++ b/doc/INSTALL.md
@@ -49,9 +49,6 @@ debian@dev:~/dev/Cyphernode$ docker network connect cyphernodenet yourappcontain
 
 ```shell
 debian@dev:~/dev/Cyphernode$ vi proxy_docker/env.properties
-debian@dev:~/dev/Cyphernode$ vi proxy_docker/app/config/config.properties
-debian@dev:~/dev/Cyphernode$ vi proxy_docker/app/config/watcher_btcnode_curlcfg.properties
-debian@dev:~/dev/Cyphernode$ vi proxy_docker/app/config/spender_btcnode_curlcfg.properties
 debian@dev:~/dev/Cyphernode$ vi cron_docker/env.properties
 debian@dev:~/dev/Cyphernode$ vi pycoin_docker/env.properties
 ```
@@ -81,7 +78,7 @@ debian@dev:~/dev/Cyphernode$ vi pycoin_docker/env.properties
 **Edit docker-compose.yml to specify special deployment constraints or if you want to run the Bitcoin node on the same machine: uncomment corresponding lines.**
 
 ```shell
-debian@dev:~/dev/Cyphernode$ docker stack deploy --compose-file docker-compose.yml cyphernodestack
+debian@dev:~/dev/Cyphernode$ USER=`id -u cyphernode`:`id -g cyphernode` docker stack deploy --compose-file docker-compose.yml cyphernodestack
 Creating service cyphernodestack_cyphernode
 Creating service cyphernodestack_proxycronnode
 Creating service cyphernodestack_pycoinnode
@@ -100,11 +97,7 @@ pi@SP-BTC01:~ $ docker swarm join --token SWMTKN-1-2pxouynn9g8si42e8g9ujwy0v9po4
 
 [See how to build Bitcoin Node image](https://github.com/SatoshiPortal/dockers/tree/master/rpi/bitcoin-core)
 
-### Run node or connect already-running node
-
-```shell
-pi@SP-BTC01:~ $ docker run -d --rm --mount type=bind,source="$HOME/.bitcoin",target="/bitcoinuser/.bitcoin" --name btcnode --network cyphernodenet btcnode
-```
+### Connect already-running node
 
 ```shell
 pi@SP-BTC01:~ $ docker network connect cyphernodenet btcnode
diff --git a/docker-compose.yml b/docker-compose.yml
index 41cb8f9..54ae02f 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -11,11 +11,13 @@ services:
     volumes:
       # Variable substitutions don't work
       # Match with DB_PATH in proxy_docker/env.properties
-      - "~/btcproxydb:/proxyuser/db"
-      - "~/.lightning:/proxyuser/.lightning"
+      - "~/btcproxydb:/proxy/db"
+      # c-lightning looks for $HOME/.lightning/, and $HOME is set to / in the container
+      - "~/lndata:/.lightning"
 #    deploy:
 #      placement:
 #        constraints: [node.hostname==dev]
+    command: $USER ./startproxy.sh
     networks:
       - cyphernodenet
 
@@ -40,6 +42,7 @@ services:
 #    deploy:
 #      placement:
 #        constraints: [node.hostname==dev]
+    command: $USER ./startpycoin.sh
     networks:
       - cyphernodenet
 
@@ -49,10 +52,11 @@ services:
     ports:
       - "9735:9735"
     volumes:
-      - "~/.lightning:/lnuser/.lightning"
+      - "~/lndata:/.lightning"
 #    deploy:
 #      placement:
 #        constraints: [node.hostname==dev]
+    command: $USER lightningd
     networks:
       - cyphernodenet
 
@@ -66,7 +70,8 @@ services:
 #      - "8333:8333"
 #      - "8332:8332"
     volumes:
-      - "~/.bitcoin:/bitcoinuser/.bitcoin"
+      - "~/btcdata:/.bitcoin"
+    command: $USER bitcoind
     networks:
       - cyphernodenet
 
diff --git a/proxy_docker/Dockerfile b/proxy_docker/Dockerfile
index 521d3d5..e49980e 100644
--- a/proxy_docker/Dockerfile
+++ b/proxy_docker/Dockerfile
@@ -1,56 +1,42 @@
 FROM alpine
 
-ARG USER_ID
-ARG GROUP_ID
-ENV USERNAME proxyuser
-ENV HOME /${USERNAME}
-ENV USER_ID ${USER_ID:-1000}
-ENV GROUP_ID ${GROUP_ID:-1000}
-
-RUN addgroup -g ${GROUP_ID} ${USERNAME} \
-    && adduser -u ${USER_ID} -G ${USERNAME} -D -s /bin/sh -h ${HOME} ${USERNAME}
+ENV HOME /proxy
 
 RUN apk add --update --no-cache \
     sqlite \
     jq \
-    curl
+    curl \
+    su-exec
 
-COPY --chown=proxyuser app/script/callbacks_job.sh ${HOME}/callbacks_job.sh
-COPY --chown=proxyuser app/script/blockchainrpc.sh ${HOME}/blockchainrpc.sh
-COPY --chown=proxyuser app/script/call_lightningd.sh ${HOME}/call_lightningd.sh
-COPY --chown=proxyuser app/script/bitcoin.sh ${HOME}/bitcoin.sh
-COPY --chown=proxyuser app/script/requesthandler.sh ${HOME}/requesthandler.sh
-COPY --chown=proxyuser app/script/watchrequest.sh ${HOME}/watchrequest.sh
-COPY --chown=proxyuser app/script/walletoperations.sh ${HOME}/walletoperations.sh
-COPY --chown=proxyuser app/script/confirmation.sh ${HOME}/confirmation.sh
-COPY --chown=proxyuser app/config/watcher_btcnode_curlcfg.properties ${HOME}/watcher_btcnode_curlcfg.properties
-COPY --chown=proxyuser app/config/spender_btcnode_curlcfg.properties ${HOME}/spender_btcnode_curlcfg.properties
-COPY --chown=proxyuser app/config/config.properties ${HOME}/config.properties
-COPY --chown=proxyuser app/script/startproxy.sh ${HOME}/startproxy.sh
-COPY --chown=proxyuser app/script/trace.sh ${HOME}/trace.sh
-COPY --chown=proxyuser app/script/sendtobitcoinnode.sh ${HOME}/sendtobitcoinnode.sh
-COPY --chown=proxyuser app/script/responsetoclient.sh ${HOME}/responsetoclient.sh
-COPY --chown=proxyuser app/script/importaddress.sh ${HOME}/importaddress.sh
-COPY --chown=proxyuser app/script/sql.sh ${HOME}/sql.sh
-COPY --chown=proxyuser app/data/watching.sql ${HOME}/watching.sql
-COPY --chown=proxyuser app/script/computefees.sh ${HOME}/computefees.sh
-COPY --chown=proxyuser app/script/unwatchrequest.sh ${HOME}/unwatchrequest.sh
-COPY --chown=proxyuser app/script/getactivewatches.sh ${HOME}/getactivewatches.sh
-COPY --chown=proxyuser app/script/utils.sh ${HOME}/utils.sh
-COPY --chown=proxyuser app/script/manage_missed_conf.sh ${HOME}/manage_missed_conf.sh
-COPY --chown=proxyuser app/script/tests.sh ${HOME}/tests.sh
-COPY --chown=proxyuser app/script/tests-cb.sh ${HOME}/tests-cb.sh
-COPY --chown=proxyuser app/bin/lightning-cli_x86 ${HOME}/lightning-cli
+COPY app/script/callbacks_job.sh ${HOME}/callbacks_job.sh
+COPY app/script/blockchainrpc.sh ${HOME}/blockchainrpc.sh
+COPY app/script/call_lightningd.sh ${HOME}/call_lightningd.sh
+COPY app/script/bitcoin.sh ${HOME}/bitcoin.sh
+COPY app/script/requesthandler.sh ${HOME}/requesthandler.sh
+COPY app/script/watchrequest.sh ${HOME}/watchrequest.sh
+COPY app/script/walletoperations.sh ${HOME}/walletoperations.sh
+COPY app/script/confirmation.sh ${HOME}/confirmation.sh
+COPY app/script/startproxy.sh ${HOME}/startproxy.sh
+COPY app/script/trace.sh ${HOME}/trace.sh
+COPY app/script/sendtobitcoinnode.sh ${HOME}/sendtobitcoinnode.sh
+COPY app/script/responsetoclient.sh ${HOME}/responsetoclient.sh
+COPY app/script/importaddress.sh ${HOME}/importaddress.sh
+COPY app/script/sql.sh ${HOME}/sql.sh
+COPY app/data/watching.sql ${HOME}/watching.sql
+COPY app/script/computefees.sh ${HOME}/computefees.sh
+COPY app/script/unwatchrequest.sh ${HOME}/unwatchrequest.sh
+COPY app/script/getactivewatches.sh ${HOME}/getactivewatches.sh
+COPY app/script/manage_missed_conf.sh ${HOME}/manage_missed_conf.sh
+COPY app/script/tests.sh ${HOME}/tests.sh
+COPY app/script/tests-cb.sh ${HOME}/tests-cb.sh
+COPY app/bin/lightning-cli_x86 ${HOME}/lightning-cli
 
-USER ${USERNAME}
 WORKDIR ${HOME}
 
 RUN chmod +x startproxy.sh requesthandler.sh lightning-cli \
- && chmod 600 watcher_btcnode_curlcfg.properties \
- && chmod 600 spender_btcnode_curlcfg.properties \
- && chmod 600 config.properties \
+ && chmod o+w . \
  && mkdir db
 
 VOLUME ["${HOME}/db", "${HOME}/.lightning"]
 
-ENTRYPOINT ["./startproxy.sh"]
+ENTRYPOINT ["su-exec"]
diff --git a/proxy_docker/README.md b/proxy_docker/README.md
index 5f34389..fe4d53e 100644
--- a/proxy_docker/README.md
+++ b/proxy_docker/README.md
@@ -2,60 +2,40 @@
 
 We assume you are the user pi on a Raspberry Pi.
 
-## Create proxyuser that will run the processes
-
-Log in your host and:
-
-```shell
-sudo useradd proxyuser
-```
-
 ## Configure your container by modifying `env.properties` file
 
 ```properties
 TRACING=1
 WATCHER_BTC_NODE_RPC_URL=btcnode:18332/wallet/watching01.dat
+WATCHER_BTC_NODE_RPC_USER=rpc_username:rpc_password
+WATCHER_BTC_NODE_RPC_CFG=/proxy/watcher_btcnode_curlcfg.properties
 SPENDER_BTC_NODE_RPC_URL=btcnode:18332/wallet/spending01.dat
+SPENDER_BTC_NODE_RPC_USER=rpc_username:rpc_password
+SPENDER_BTC_NODE_RPC_CFG=/proxy/spender_btcnode_curlcfg.properties
 PROXY_LISTENING_PORT=8888
 # Variable substitutions don't work
-DB_PATH=/proxyuser/db
-DB_FILE=/proxyuser/db/proxydb
+DB_PATH=/proxy/db
+DB_FILE=/proxy/db/proxydb
 # Pycoin container
 PYCOIN_CONTAINER=pycoinnode:7777
 # OTS container
 OTS_CONTAINER=otsnode:6666
-```
 
-## Set your Watching Bitcoin node RPC credentials in `app/config/watcher_btcnode_curlcfg.properties`
-
-```properties
-user=rpc_username:rpc_password
-```
-
-## Set your Spending Bitcoin node RPC credentials in `app/config/spender_btcnode_curlcfg.properties`
-
-```properties
-user=rpc_username:rpc_password
-```
-
-## Set your address derivation information in `app/config/derivation.properties`
-
-```properties
-derivation.xpub=upub5GtUcgGed1aGH4HKQ3vMYrsmLXwmHhS1AeX33ZvDgZiyvkGhNTvGd2TA5Lr4v239Fzjj4ZY48t6wTtXUy2yRgapf37QHgt6KWEZ6bgsCLpb
-derivation.path=0/n
-watchingnode.pruned=false
+DERIVATION_PUB32=upub5GtUcgGed1aGH4HKQ3vMYrsmLXwmHhS1AeX33ZvDgZiyvkGhNTvGd2TA5Lr4v239Fzjj4ZY48t6wTtXUy2yRgapf37QHgt6KWEZ6bgsCLpb
+DERIVATION_PATH=0/n
+WATCHER_BTC_NODE_PRUNED=false
 ```
 
 ## Building docker image
 
 ```shell
-docker build -t btcproxyimg --build-arg USER_ID=$(id -u proxyuser) --build-arg GROUP_ID=$(id -g proxyuser) .
+docker build -t btcproxyimg .
 ```
 
 ## Create sqlite3 database path and give rights
 
 ```shell
-mkdir ~/btcproxydb ; sudo chown -R proxyuser:pi ~/btcproxydb ; sudo chmod g+ws ~/btcproxydb
+mkdir ~/btcproxydb ; sudo chown -R cyphernode:pi ~/btcproxydb ; sudo chmod g+ws ~/btcproxydb
 ```
 
 ## What you MUST have in your Watching Bitcoin node's bitcoin.conf file
diff --git a/proxy_docker/app/config/config.properties b/proxy_docker/app/config/config.properties
deleted file mode 100644
index 56d0ada..0000000
--- a/proxy_docker/app/config/config.properties
+++ /dev/null
@@ -1,3 +0,0 @@
-derivation.pub32=upub5GtUcgGed1aGH4HKQ3vMYrsmLXwmHhS1AeX33ZvDgZiyvkGhNTvGd2TA5Lr4v239Fzjj4ZY48t6wTtXUy2yRgapf37QHgt6KWEZ6bgsCLpb
-derivation.path=0/n
-watchingnode.pruned=false
diff --git a/proxy_docker/app/config/spender_btcnode_curlcfg.properties b/proxy_docker/app/config/spender_btcnode_curlcfg.properties
deleted file mode 100644
index 0860f6c..0000000
--- a/proxy_docker/app/config/spender_btcnode_curlcfg.properties
+++ /dev/null
@@ -1 +0,0 @@
-user=rpc_username:rpc_password
diff --git a/proxy_docker/app/config/watcher_btcnode_curlcfg.properties b/proxy_docker/app/config/watcher_btcnode_curlcfg.properties
deleted file mode 100644
index 0860f6c..0000000
--- a/proxy_docker/app/config/watcher_btcnode_curlcfg.properties
+++ /dev/null
@@ -1 +0,0 @@
-user=rpc_username:rpc_password
diff --git a/proxy_docker/app/script/bitcoin.sh b/proxy_docker/app/script/bitcoin.sh
index a32c9c3..5fc0632 100644
--- a/proxy_docker/app/script/bitcoin.sh
+++ b/proxy_docker/app/script/bitcoin.sh
@@ -1,7 +1,6 @@
 #!/bin/sh
 
 . ./trace.sh
-. ./utils.sh
 
 deriveindex()
 {
@@ -10,8 +9,8 @@ deriveindex()
 	local index=${1}
 	trace "[deriveindex] index=${index}"
 
-	local pub32=$(get_prop "derivation.pub32")
-	local path=$(get_prop "derivation.path" | sed -En "s/n/${index}/p")
+	local pub32=$DERIVATION_PUB32
+	local path=$(echo -e $DERIVATION_PATH | sed -En "s/n/${index}/p")
 	#	pub32=$(grep "derivation.pub32" config.properties | cut -d'=' -f2)
 	#	path=$(grep "derivation.path" config.properties | cut -d'=' -f2 | sed -En "s/n/${index}/p")
 
@@ -43,4 +42,4 @@ send_to_pycoin()
 	trace_rc ${returncode}
 	return ${returncode}
 
-}
+}
\ No newline at end of file
diff --git a/proxy_docker/app/script/computefees.sh b/proxy_docker/app/script/computefees.sh
index 1948cef..640e24d 100644
--- a/proxy_docker/app/script/computefees.sh
+++ b/proxy_docker/app/script/computefees.sh
@@ -7,7 +7,7 @@
 
 compute_fees()
 {
-	local pruned=$(get_prop "watchingnode.pruned")
+	local pruned=${WATCHER_BTC_NODE_PRUNED}
 	if [ "${pruned}" = "true" ]; then
 		trace "[compute_fees]  pruned=${pruned}"
 		# We want null instead of 0.00000000 in this case.
diff --git a/proxy_docker/app/script/startproxy.sh b/proxy_docker/app/script/startproxy.sh
index 8f9cd94..b6e65d0 100644
--- a/proxy_docker/app/script/startproxy.sh
+++ b/proxy_docker/app/script/startproxy.sh
@@ -3,13 +3,39 @@
 export PROXY_LISTENING_PORT
 export WATCHER_NODE_RPC_URL=$WATCHER_BTC_NODE_RPC_URL
 export SPENDER_NODE_RPC_URL=$SPENDER_BTC_NODE_RPC_URL
+export WATCHER_NODE_RPC_CFG=$WATCHER_BTC_NODE_RPC_CFG
+export SPENDER_NODE_RPC_CFG=$SPENDER_BTC_NODE_RPC_CFG
 export TRACING
 export DB_PATH
 export DB_FILE
 
+trim() {
+	echo -e $1 | sed -e 's/^[[:space:]]*//' | sed -e 's/[[:space:]]*$//'
+}
+
+createCurlConfig() {
+
+	if [[ ''$1 == '' ]]; then
+		echo "Missing file name: Check you *_BTC_NODE_RPC_CFG"
+		return
+	fi
+
+	if [[ ''$2 == '' ]]; then
+		echo "Missing content: Check you *_BTC_NODE_RPC_USER"
+		return
+	fi
+
+	local user=$( trim $2 )
+	echo "user=${user}" > ${1}
+
+}
+
 if [ ! -e ${DB_FILE} ]; then
-	echo "DB not found, creating..." > /dev/stderr
+	echo "DB not found, creating..." 1>&2
 	cat watching.sql | sqlite3 $DB_FILE
 fi
 
+createCurlConfig ${WATCHER_BTC_NODE_RPC_CFG} ${WATCHER_BTC_NODE_RPC_USER}
+createCurlConfig ${SPENDER_BTC_NODE_RPC_CFG} ${SPENDER_BTC_NODE_RPC_USER}
+
 nc -vlkp${PROXY_LISTENING_PORT} -e ./requesthandler.sh
diff --git a/proxy_docker/app/script/tests-cb.sh b/proxy_docker/app/script/tests-cb.sh
index 4efe5a2..bccbed8 100644
--- a/proxy_docker/app/script/tests-cb.sh
+++ b/proxy_docker/app/script/tests-cb.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 
 read line
-echo ${line} > /dev/stderr
+echo ${line} 1>&2
 echo -ne "HTTP/1.1 200 OK\r\n"
 echo -e "Content-Type: application/json\r\nContent-Length: 0\r\n\r\n"
 
diff --git a/proxy_docker/app/script/trace.sh b/proxy_docker/app/script/trace.sh
index 9ff1b50..680f3f2 100644
--- a/proxy_docker/app/script/trace.sh
+++ b/proxy_docker/app/script/trace.sh
@@ -3,13 +3,13 @@
 trace()
 {
 	if [ -n "${TRACING}" ]; then
-		echo "$(date -Is) ${1}" > /dev/stderr
+		echo "$(date -Is) ${1}" 1>&2
 	fi
 }
 
 trace_rc()
 {
 	if [ -n "${TRACING}" ]; then
-		echo "$(date -Is) Last return code: ${1}" > /dev/stderr
+		echo "$(date -Is) Last return code: ${1}" 1>&2
 	fi
 }
diff --git a/proxy_docker/env.properties b/proxy_docker/env.properties
index 3e7dcbf..9a1f8d5 100644
--- a/proxy_docker/env.properties
+++ b/proxy_docker/env.properties
@@ -1,11 +1,19 @@
 TRACING=1
 WATCHER_BTC_NODE_RPC_URL=btcnode:18332/wallet/watching01.dat
+WATCHER_BTC_NODE_RPC_USER=rpc_username:rpc_password
+WATCHER_BTC_NODE_RPC_CFG=/proxy/watcher_btcnode_curlcfg.properties
 SPENDER_BTC_NODE_RPC_URL=btcnode:18332/wallet/spending01.dat
+SPENDER_BTC_NODE_RPC_USER=rpc_username:rpc_password
+SPENDER_BTC_NODE_RPC_CFG=/proxy/spender_btcnode_curlcfg.properties
 PROXY_LISTENING_PORT=8888
 # Variable substitutions don't work
-DB_PATH=/proxyuser/db
-DB_FILE=/proxyuser/db/proxydb
+DB_PATH=/proxy/db
+DB_FILE=/proxy/db/proxydb
 # Pycoin container
 PYCOIN_CONTAINER=pycoinnode:7777
 # OTS container
 OTS_CONTAINER=otsnode:6666
+
+DERIVATION_PUB32=upub5GtUcgGed1aGH4HKQ3vMYrsmLXwmHhS1AeX33ZvDgZiyvkGhNTvGd2TA5Lr4v239Fzjj4ZY48t6wTtXUy2yRgapf37QHgt6KWEZ6bgsCLpb
+DERIVATION_PATH=0/n
+WATCHER_BTC_NODE_PRUNED=false
diff --git a/pycoin_docker/Dockerfile b/pycoin_docker/Dockerfile
index 410f5af..5e74852 100644
--- a/pycoin_docker/Dockerfile
+++ b/pycoin_docker/Dockerfile
@@ -1,31 +1,23 @@
 #FROM resin/raspberry-pi-alpine-python:3.6
 FROM python:3.6-alpine
 
-ARG USER_ID
-ARG GROUP_ID
-ENV USERNAME proxyuser
-ENV HOME /${USERNAME}
-ENV USER_ID ${USER_ID:-1000}
-ENV GROUP_ID ${GROUP_ID:-1000}
+ENV HOME /pycoin
 
-RUN addgroup -g ${GROUP_ID} ${USERNAME} \
-    && adduser -u ${USER_ID} -G ${USERNAME} -D -s /bin/sh -h ${HOME} ${USERNAME}
+RUN apk add --update --no-cache git jq su-exec \
+ && pip install --no-cache-dir pycoin \
+ && cd / \
+ && git clone https://github.com/Kexkey/pycoin.git \
+ && cp -rf pycoin/pycoin/* /usr/local/lib/python3.6/site-packages/pycoin \
+ && rm -rf pycoin/*
 
-RUN apk add --update --no-cache git jq \
-&& pip install --no-cache-dir pycoin \
-&& cd \
-&& git clone https://github.com/Kexkey/pycoin.git \
-&& cp -rf pycoin/pycoin/* /usr/local/lib/python3.6/site-packages/pycoin
+COPY script/pycoin.sh ${HOME}/pycoin.sh
+COPY script/requesthandler.sh ${HOME}/requesthandler.sh
+COPY script/responsetoclient.sh ${HOME}/responsetoclient.sh
+COPY script/startpycoin.sh ${HOME}/startpycoin.sh
+COPY script/trace.sh ${HOME}/trace.sh
 
-COPY --chown=proxyuser script/pycoin.sh ${HOME}/pycoin.sh
-COPY --chown=proxyuser script/requesthandler.sh ${HOME}/requesthandler.sh
-COPY --chown=proxyuser script/responsetoclient.sh ${HOME}/responsetoclient.sh
-COPY --chown=proxyuser script/startpycoin.sh ${HOME}/startpycoin.sh
-COPY --chown=proxyuser script/trace.sh ${HOME}/trace.sh
-
-USER ${USERNAME}
 WORKDIR ${HOME}
 
 RUN chmod +x startpycoin.sh requesthandler.sh
 
-ENTRYPOINT ["./startpycoin.sh"]
+ENTRYPOINT ["su-exec"]
diff --git a/pycoin_docker/README.md b/pycoin_docker/README.md
index 6e2c6dc..5f00b5d 100644
--- a/pycoin_docker/README.md
+++ b/pycoin_docker/README.md
@@ -1,7 +1,7 @@
 # Build image
 
 ```shell
-docker build -t pycoinimg --build-arg USER_ID=$(id -u proxyuser) --build-arg GROUP_ID=$(id -g proxyuser) .
+docker build -t pycoinimg .
 ```
 
 # Usefull examples
diff --git a/pycoin_docker/script/trace.sh b/pycoin_docker/script/trace.sh
index 9ff1b50..680f3f2 100644
--- a/pycoin_docker/script/trace.sh
+++ b/pycoin_docker/script/trace.sh
@@ -3,13 +3,13 @@
 trace()
 {
 	if [ -n "${TRACING}" ]; then
-		echo "$(date -Is) ${1}" > /dev/stderr
+		echo "$(date -Is) ${1}" 1>&2
 	fi
 }
 
 trace_rc()
 {
 	if [ -n "${TRACING}" ]; then
-		echo "$(date -Is) Last return code: ${1}" > /dev/stderr
+		echo "$(date -Is) Last return code: ${1}" 1>&2
 	fi
 }