Update home page with Bootstrap: https://www.writtinfool.com/
Additionally produce 6 or so sites using Bootstrap themes and become competent in easily customizing them for potential customers.
Finish REST API tutorial to become comfortable building REST web services with NodeJS and Express to feed Maybe a menu site and an invoicing site and mobile app. https://www.freecodecamp.org/news/rest-api-design-best-practices-build-a-rest-api/
Utilize Github pages to publish static sites. https://pages.github.com/
Finish FreeCodeCamp course work https://www.freecodecamp.org/learn/
Update skills with .NET web API to be able to spin up data connected web services with a razor admin interface to feed Maybe a menu site and an invoicing site and mobile app. https://learn.microsoft.com/en-us/aspnet/web-api/
Get up to speed with Netlify and the Netlify CMS. For me this is a tool to enable server-less web pages with editable content https://docs.netlify.com/