Taberii
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Because it was too hard, I created a "Slack Bot that automatically decides and sends the week's meal plan and necessary ingredients every Saturday morning" using Google Apps Script to make things easier for myself. That's how Taberii started.
When I tweeted about the completed product, it received a lot of attention, and when I gave it as a gift to a few friends, they were delighted. When I tried selling it on Coconala, it quickly made about 5,000 yen in sales, which made me realize the existence, potential, and expansion of the service. (At this point, Ishikawa and I started developing it as an app as a side project.)
The first challenge and business verification were carried out by selling the service "We will decide your meal plan" on Coconala and Jimoty. More than 10 people immediately paid for it, so we judged it to be sufficient and moved on to product verification.
https://gyazo.com/211d3ec541d6fcbba21e9bc4e3c9a66e