TODO: research and document this 
Roughly take repo push to main branch and run TW under NodeJS and zip / make a release.
Command to build a plugin tiddler as a JSON file from source:
tiddlywiki PATH/TO/TIDDLYWIKI.INFO --render "PLUGIN-TIDDLER-TITLE" "[slugify[]addsuffix[.json]]" "text/plain" "$:/core/templates/json.tiddler"
Example:
tiddlywiki . --render "$:/plugins/sq/streams" "[slugify[]addsuffix[.json]]" "text/plain" "$:/core/templates/json-tiddler"
The plugin tiddler title is the one specified in the plugins plugin.info file.
Feel free to edit this wiki page to add links or answers — @boris