diff --git a/01ubuntu.sh b/01ubuntu.sh
index d1d715b..efa54a4 100644
--- a/01ubuntu.sh
+++ b/01ubuntu.sh
@@ -18,6 +18,7 @@ apt update && apt upgrade -y
 PKGS="
     apt-file
     apt-utils
+    bash
     bash-completion
     build-essential
     byobu
diff --git a/Dockerfile b/Dockerfile
index 7d3b95e..51ee327 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -35,7 +35,7 @@ RUN dpkg -i /tmp/atom.deb && rm /tmp/atom.deb
 ########################################################
 RUN git clone https://github.com/creationix/nvm.git /usr/local/nvm
 ADD ./nvmsetup.sh /etc/profile.d/nvmsetup.sh
-RUN \ bash -c 'source /etc/profile.d/nvmsetup.sh && \
+RUN bash -c 'source /etc/profile.d/nvmsetup.sh && \
     nvm install --lts && \
     nvm use default'
 
@@ -43,11 +43,10 @@ RUN \ bash -c 'source /etc/profile.d/nvmsetup.sh && \
 #####  javascript, my favorite
 ########################################################
 # yes i know yarn says not to install it this way
-RUN \
-    source /etc/profile.d/nvmsetup.sh && \
+RUN bash -c 'source /etc/profile.d/nvmsetup.sh && \
     nvm use default && \
     npm install -g npm && \
-    npm install -g yarn
+    npm install -g yarn'
 
 RUN yarn global add prettier
 RUN yarn global add create-react-app
diff --git a/Makefile b/Makefile
index 0b653c6..40c953b 100644
--- a/Makefile
+++ b/Makefile
@@ -1,10 +1,11 @@
 REMOTEHOST := root@las2.bounce
 IMAGENAME := sneak/dockerized-workstation
+YYYYMMDD := $(shell date +%Y%m%d)
 
 default: remote-build
 
 build:
-	docker build -t $(IMAGENAME) .
+	docker build -t $(IMAGENAME):$(YYYYMMDD) .
 
 upload:
 	rsync -avP --delete ./ $(REMOTEHOST):dockerized-workstation/
@@ -12,5 +13,8 @@ upload:
 remote-build: upload
 	ssh -t $(REMOTEHOST) "cd dockerized-workstation && make build"
 
+publish:
+	ssh -t $(REMOTEHOST) "cd dockerized-workstation && docker push $(IMAGENAME):$(YYYYMMDD)"
+
 tryout:
 	ssh -t $(REMOTEHOST) "docker run -ti $(IMAGENAME)"