Failed or not, but at least for 2020 Y-Combinator Ruby-based startups valuation was more than other programming languages based startups combined.
https://charliereese.ca/y-combinator-top-50-software-startup...
https://charliereese.ca/y-combinator-top-50-software-startup...
Lmao you really think Stripe is still running primarily on Ruby? Yeah it's good for prototyping because it's fast to write in, but unmaintainable as hell for a real business.
Update: found a thread here on HN: https://news.ycombinator.com/item?id=29834840 I doubt they’ve rewritten everything to Java for the last three years.