seems to build now

Dockerfile

@@ -31,23 +31,9 @@ ADD https://atom.io/download/deb /tmp/atom.deb
 RUN dpkg -i /tmp/atom.deb && rm /tmp/atom.deb
 
 ########################################################
-#####  nvm
+#####  nvm and node and yarn and js packages
 ########################################################
 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 && \
-    nvm install --lts && \
-    nvm use default'
-
-########################################################
-#####  javascript, my favorite
-########################################################
-# yes i know yarn says not to install it this way
-RUN bash -c 'source /etc/profile.d/nvmsetup.sh && \
-    nvm use default && \
-    npm install -g npm && \
-    npm install -g yarn'
-
-RUN yarn global add prettier
-RUN yarn global add create-react-app
-RUN yarn global add jetpack
+ADD ./nvm-init.sh /tmp/nvm-init.sh
+RUN bash /tmp/nvm-init.sh && rm /tmp/nvm-init.sh

nvm-init.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+
+source /etc/profile.d/nvmsetup.sh
+nvm install --lts
+nvm use default
+
+# yes i know yarn says not to install it this way
+npm install -g npm
+npm install -g yarn
+
+#YARN="/usr/local/nvm/versions/node/v*/bin/yarn"
+
+export PATH="$PATH:/usr/local/nvm/versions/node/v*/bin"
+
+NPM_PKGS="
+    create-react-app
+    jetpack
+    now
+    prettier
+"
+
+for PKG in $NPM_PKGS ; do
+    yarn global add $PKG
+done