Ryan Fitzgerald is a US developer and educator focused on the under-explored niche of building production-quality browser extensions — one of the more interesting product categories for solo developers because of the captive-distribution model and the specific engineering constraints.
His CourseFlix listing carries Chrome Extension Mastery — Build Full-Stack Extensions — a comprehensive treatment of building production Chrome extensions: the manifest v3 model, the messaging architecture between content scripts and background workers, the React-based UI patterns, the auth integration, and the publishing workflow.
Material is paid and aimed at developers shipping browser extensions as products. For broader content, see CourseFlix's Browser Extensions and React.js category pages.
