To start server:
npm install
node server.js
Then go to http://localhost:8080 in your browser.
Note You must access the page over HTTPS in order to record audio. Here is a tutorial on how to get HTTPS working in a development environment: https://www.freecodecamp.org/news/how-to-get-https-working-on-your-local-development-environment-in-5-minutes-7af615770eec/
To compile TSX to JS:
webpack --watch
To compile Stylus to CSS:
stylus \
--compress \
--include-css \
--include ./node_modules \
--out . \
--watch styl/style.styl