Great post describing the full process from idea to production. Also I didn't hear about Glitch before your post. It's so easy to develop and deploy Node apps on Glitch!
I'm just curious why did you choose to use puppeteer for scraping. I thought it's more suitable for end-to-end tests. I think it adds extra complexity by introducing a browser's launch/exiting, sandboxes, page evaluating.
Maybe it'll be better to use a fetch library (like request) to fetch the MDN page and parse it with cheerio in jQuery style?
Thanks Eugene 😊
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