Obviously it depends on what you're doing. Used RoR back in the day and it's a great way to get stuff out the door. I coded like I was on fire. I've never had

Obviously it depends on what you're doing. Used RoR back in the day and it's a great way to get stuff out the door. I coded like I was on fire. I've never had that sensation since then doing JS/TS/React blah-blah. If you're doing a startup, your goal (I presume) is to validate your assumptions and get customers. If it takes off you could always rewrite the backend in Go (which will buy you lots of time) and think of the frontend at a later date. Remember 95% (odd) startups fail, so think about failing as fast as possible.