from etherpad/etherpad
run npm install --unsafe-perm sqlite3@4.2.0
run npm install ep_headings2 ep_markdown ep_comments_page ep_align ep_font_color ep_webrtc ep_embedded_hyperlinks2
run npm install ep_headerauth 
copy services/etherpad/settings.json.docker ./settings.json

user root
run apt-get update && apt-get install -y sqlite3 python3 build-essential
run npm update node
run npm i -g npm-upgrade && npm install sqlite3

run npm install ep_headings2 ep_markdown ep_comments_page ep_align ep_font_color ep_webrtc ep_embedded_hyperlinks2