cleanup tmpdirs/cache, add prettier

setup.sh

@@ -17,6 +17,13 @@ mv /tmp/node-v18.12.1-linux-arm64.tar.xz "$NCD"
 nvm ls-remote
 nvm install v18.12.1
 nvm use v18.12.1
-rm -rf "/usr/local/nvm/.cache"
 
 npm install -g yarn
+yarn global add prettier
+
+prettier --version
+
+which npm
+which yarn
+
+rm -rf /usr/local/nvm/.cache /tmp/*