diff --git a/.dockerignore b/.dockerignore
index ca51d8c4e..e17c9e33c 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -3,18 +3,24 @@
 .dockerignore
 .vagrant
 .idea
-data/*
-Makefile
+.DS_Store
+.htaccess
+*.lock
+*.md
+*.js
+*.sh
 .*.yml
 *.yml
-*.js
-*.md
-*.sh
-app.json
+data/*
+plugins/*
+tests
+ChangeLog
+composer.json
+Dockerfile
+Makefile
 package.json
 Vagrantfile
 web.config
 node_modules
-hooks
 assets/sass
 assets/vendor
\ No newline at end of file
diff --git a/CONTRIBUTING b/CONTRIBUTING
deleted file mode 100644
index a374f1b4b..000000000
--- a/CONTRIBUTING
+++ /dev/null
@@ -1 +0,0 @@
-See https://docs.kanboard.org/en/latest/developer_guide/index.html
diff --git a/Dockerfile b/Dockerfile
index 1da18a714..061dc4e7d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -17,15 +17,10 @@ RUN apk update && \
     rm -rf /var/www/localhost && \
     rm -f /etc/php7/php-fpm.d/www.conf
 
-RUN cd /tmp \
-    && curl -sL -o kb.zip https://github.com/kanboard/kanboard/archive/$VERSION.zip \
-    && unzip -qq kb.zip \
-    && cd kanboard-* \
-    && cp -R . /var/www/app \
-    && cd /tmp \
-    && rm -rf /tmp/kanboard-* /tmp/*.zip
-
+ADD . /var/www/app
 ADD docker/ /
 
+RUN rm -rf /var/www/app/docker && echo $VERSION > /version.txt
+
 ENTRYPOINT ["/usr/local/bin/entrypoint.sh"]
 CMD []
diff --git a/Makefile b/Makefile
index 79f2cf616..e38273e19 100644
--- a/Makefile
+++ b/Makefile
@@ -1,35 +1,46 @@
+DOCKER_IMAGE := kanboard/kanboard
+DOCKER_TAG := master
+VERSION := $(shell git rev-parse --short HEAD)
+
+.PHONY: all
 all: static
 
+.PHONY: clean
 clean:
 	@ rm -rf ./node_modules
 
+.PHONY: static
 static: clean
 	@ npm install
 	@ ./node_modules/.bin/gulp vendor js css
 	@ ./node_modules/.bin/jshint assets/js/{core,components,polyfills}
 
+.PHONY: jshint
 jshint:
 	@ ./node_modules/.bin/jshint assets/js/{core,components,polyfills}
 
+.PHONY: archive
 archive:
-	@ echo "Build archive: version=${version}, destination=${dst}"
-	@ git archive --format=zip --prefix=kanboard/ ${version} -o ${dst}/kanboard-${version}.zip
-
-test-sqlite-coverage:
-	@ ./vendor/bin/phpunit --coverage-html /tmp/coverage --whitelist app/ -c tests/units.sqlite.xml
+	@ echo "Build archive: version=$(VERSION)"
+	@ git archive --format=zip --prefix=kanboard/ $(VERSION) -o kanboard-$(VERSION).zip
 
+.PHONY: test-sqlite
 test-sqlite:
 	@ ./vendor/bin/phpunit -c tests/units.sqlite.xml
 
+.PHONY: test-mysql
 test-mysql:
 	@ ./vendor/bin/phpunit -c tests/units.mysql.xml
 
+.PHONY: test-postgres
 test-postgres:
 	@ ./vendor/bin/phpunit -c tests/units.postgres.xml
 
+.PHONY: test-browser
 test-browser:
 	@ ./vendor/bin/phpunit -c tests/acceptance.xml
 
+.PHONY: integration-test-mysql
 integration-test-mysql:
 	@ composer install --dev
 	@ docker-compose -f tests/docker/compose.integration.mysql.yaml build
@@ -37,6 +48,7 @@ integration-test-mysql:
 	@ docker-compose -f tests/docker/compose.integration.mysql.yaml up tests
 	@ docker-compose -f tests/docker/compose.integration.mysql.yaml down
 
+.PHONY: integration-test-postgres
 integration-test-postgres:
 	@ composer install --dev
 	@ docker-compose -f tests/docker/compose.integration.postgres.yaml build
@@ -44,6 +56,7 @@ integration-test-postgres:
 	@ docker-compose -f tests/docker/compose.integration.postgres.yaml up tests
 	@ docker-compose -f tests/docker/compose.integration.postgres.yaml down
 
+.PHONY: integration-test-sqlite
 integration-test-sqlite:
 	@ composer install --dev
 	@ docker-compose -f tests/docker/compose.integration.sqlite.yaml build
@@ -51,6 +64,7 @@ integration-test-sqlite:
 	@ docker-compose -f tests/docker/compose.integration.sqlite.yaml up tests
 	@ docker-compose -f tests/docker/compose.integration.sqlite.yaml down
 
+.PHONY: sql
 sql:
 	@ pg_dump -x -O --schema-only --no-owner --no-privileges --quote-all-identifiers -n public --file app/Schema/Sql/postgres.sql kanboard
 	@ pg_dump -d kanboard --column-inserts --data-only --table settings >> app/Schema/Sql/postgres.sql
@@ -71,7 +85,14 @@ sql:
 
 	@ grep -v "SET idle_in_transaction_session_timeout = 0;" app/Schema/Sql/postgres.sql > temp && mv temp app/Schema/Sql/postgres.sql
 
+.PHONY: docker-image
 docker-image:
-	@ IMAGE_NAME=kanboard/kanboard:latest ./hooks/build
+	@ docker build --build-arg VERSION=$(VERSION) -t $(DOCKER_IMAGE):$(DOCKER_TAG) .
 
-.PHONY: all
+.PHONY: docker-run
+docker-run:
+	@ docker run --rm --name=kanboard -p 80:80 -p 443:443 $(DOCKER_IMAGE):$(DOCKER_TAG)
+
+.PHONY: docker-sh
+docker-sh:
+	@ docker exec -ti kanboard bash
diff --git a/app.json b/app.json
deleted file mode 100644
index fc12f7c51..000000000
--- a/app.json
+++ /dev/null
@@ -1,8 +0,0 @@
-{
-  "name": "Kanboard",
-  "description": "Kanboard is a simple visual task board",
-  "repository": "https://github.com/kanboard/kanboard",
-  "logo": "https://kanboard.org/assets/img/icon.svg",
-  "keywords": ["kanboard", "kanban", "php", "agile"],
-  "addons": ["heroku-postgresql:hobby-dev"]
-}
diff --git a/app/functions.php b/app/functions.php
index bb739d0f7..fc278029b 100644
--- a/app/functions.php
+++ b/app/functions.php
@@ -166,8 +166,6 @@ function array_column_sum(array &$input, $column)
  */
 function build_app_version($ref, $commit_hash)
 {
-    $version = 'master';
-
     if ($ref !== '$Format:%d$') {
         $tag = preg_replace('/\s*\(.*tag:\sv([^,]+).*\)/i', '\1', $ref);
 
@@ -177,10 +175,12 @@ function build_app_version($ref, $commit_hash)
     }
 
     if ($commit_hash !== '$Format:%H$') {
-        $version .= '.'.$commit_hash;
+        return 'master.'.$commit_hash;
+    } else if (file_exists('/version.txt')) {
+        return file_get_contents('/version.txt');
     }
 
-    return $version;
+    return 'master.unknown_revision';
 }
 
 /**
diff --git a/docker/etc/nginx/nginx.conf b/docker/etc/nginx/nginx.conf
index fcc9a9aab..df26ad462 100644
--- a/docker/etc/nginx/nginx.conf
+++ b/docker/etc/nginx/nginx.conf
@@ -23,7 +23,7 @@ http {
     
     server {
         listen       80;
-        listen       443 ssl;
+        listen       443 ssl http2;
         ssl_certificate /etc/nginx/ssl/kanboard.crt;
         ssl_certificate_key /etc/nginx/ssl/kanboard.key;
         server_name  localhost;
diff --git a/docker/usr/local/bin/entrypoint.sh b/docker/usr/local/bin/entrypoint.sh
index 61ce92076..5618b4bce 100755
--- a/docker/usr/local/bin/entrypoint.sh
+++ b/docker/usr/local/bin/entrypoint.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-#generate a new self signed SSL certificate when none is provided in the volume
+# Generate a new self signed SSL certificate when none is provided in the volume
 if [ ! -f /etc/nginx/ssl/kanboard.key  ] || [ ! -f /etc/nginx/ssl/kanboard.crt ]
 then
     openssl req -x509 -nodes -newkey rsa:2048 -keyout /etc/nginx/ssl/kanboard.key -out /etc/nginx/ssl/kanboard.crt -subj "/C=GB/ST=London/L=London/O=Self Signed/OU=IT Department/CN=kanboard.org"
diff --git a/hooks/build b/hooks/build
deleted file mode 100755
index 043be1f7b..000000000
--- a/hooks/build
+++ /dev/null
@@ -1,15 +0,0 @@
-#!/bin/bash
-
-VERSION=master
-
-if [ "$SOURCE_BRANCH" != "" ]; then
-    VERSION=$SOURCE_BRANCH
-
-    if [ "$SOURCE_BRANCH" == "latest" ]; then
-        VERSION=master
-    fi
-fi
-
-echo "Building $VERSION"
-
-docker build --build-arg VERSION=$VERSION -t $IMAGE_NAME .