diff --git a/.gitignore b/.gitignore
index 8b13789..397b4a7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1 @@
-
+*.log
diff --git a/README.md b/README.md
index acbf340..aeb1898 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,22 @@
 
 Dockerized pigz, a parallel implementation of gzip for modern multi-processor, multi-core machines
 
+## How to Run
+
 ```bash
 docker run -it --rm pigz:2.4
 ```
+
+## Build Container Image
+
+```bash
+./build.sh
+```
+
+## Push to Docker Registry
+
+Either you can use the `docker push` command or run `push.sh` (requires [scing](https://github.com/hisplan/scing)):
+
+```bash
+./push.sh
+```
diff --git a/build.sh b/build.sh
index 175ae44..0a2e53b 100755
--- a/build.sh
+++ b/build.sh
@@ -1,5 +1,15 @@
-#!/bin/bash
+#!/bin/bash -e
 
 source config.sh
 
 docker build -t ${image_name}:${version} .
+
+# hack: comment the ENTRYPOINT and CMD lines to make it work for cromwell
+# this will generate `Dockerfile.cromwell` and build it under the name `cromwell-${image_name}:${version}`
+# https://github.com/broadinstitute/cromwell/issues/2461
+cat Dockerfile \
+    | sed 's/^ENTRYPOINT \[/# ENTRYPOINT \[/g' \
+    | sed 's/^CMD \[/# CMD \[/g' > Dockerfile.cromwell
+
+# build it
+docker build -t cromwell-${image_name}:${version} -f Dockerfile.cromwell .
diff --git a/config.sh b/config.sh
index 85da53e..99ede72 100644
--- a/config.sh
+++ b/config.sh
@@ -1,9 +1,5 @@
 version="2.4"
 
 # docker related
-registry="583643567512.dkr.ecr.us-east-1.amazonaws.com"
+registry="quay.io/hisplan"
 image_name="pigz"
-
-# set this to 1 if you want to create a repository in AWS ECR
-# set this to 0 for Docker Hub
-create_ecr_repo=1
\ No newline at end of file
diff --git a/package-for-cromwell.sh b/package-for-cromwell.sh
deleted file mode 100755
index 2902862..0000000
--- a/package-for-cromwell.sh
+++ /dev/null
@@ -1,36 +0,0 @@
-#!/bin/bash
-
-source config.sh
-
-image_name="cromwell-${image_name}"
-
-echo "Building ${image_name}:${version}..."
-
-# hack: comment the ENTRYPOINT and CMD lines
-# https://github.com/broadinstitute/cromwell/issues/2461
-cat Dockerfile \
-    | sed 's/^ENTRYPOINT \[/# ENTRYPOINT \[/g' \
-    | sed 's/^CMD \[/# CMD \[/g' > Dockerfile.cromwell
-
-cat Dockerfile.cromwell
-
-# build it
-docker build -t ${image_name}:${version} -f Dockerfile.cromwell .
-
-echo "Packaging ${registry}/${image_name}:${version}..."
-
-#
-# tag it and push it to docker hub
-#
-
-docker tag ${image_name}:${version} ${registry}/${image_name}:${version}
-if [ $create_ecr_repo == 1 ]
-then
-    # only create if not exist
-    aws ecr describe-repositories --repository-name ${image_name} 2> /dev/null
-    if [ $? != 0 ]
-    then
-        aws ecr create-repository --repository-name ${image_name}
-    fi
-fi
-docker push ${registry}/${image_name}:${version}
diff --git a/package.sh b/package.sh
deleted file mode 100755
index 8768176..0000000
--- a/package.sh
+++ /dev/null
@@ -1,17 +0,0 @@
-#!/bin/bash
-
-source config.sh
-
-echo "${registry}/${image_name}:${version}"
-
-docker tag ${image_name}:${version} ${registry}/${image_name}:${version}
-if [ $create_ecr_repo == 1 ]
-then
-    # only create if not exist
-    aws ecr describe-repositories --repository-name ${image_name} 2> /dev/null
-    if [ $? != 0 ]
-    then
-        aws ecr create-repository --repository-name ${image_name}
-    fi
-fi
-docker push ${registry}/${image_name}:${version}
diff --git a/push.sh b/push.sh
new file mode 100755
index 0000000..1a86db5
--- /dev/null
+++ b/push.sh
@@ -0,0 +1,8 @@
+#!/bin/bash -e
+
+source config.sh
+
+echo "${registry}/${image_name}:${version}"
+
+scing push --image=${registry}/${image_name}:${version}
+scing push --image=${registry}/cromwell-${image_name}:${version}