In "Building a marketplace for backyard homes", Caleb Barclay tells the story how he build a digital business as a side-project and without having to do any coding.
"In total, the project took 40-60 hours to build (working part time over the course of 3 weeks). The majority of that time was spent gathering data, doing research and corresponding with manufacturers. The actual design / build took only 1 day to get it to 90% complete."
This is a great example how anyone can create a successful web-based business using tools availabe on the Internet, such as Webflow, Google Sheets, Zapier and Airtable.