Well, this is always a tradeoff: the cost of being away from the mainstream may outweigh familiarity with a programming language at some point. I'm not sure if

Well, this is always a tradeoff: the cost of being away from the mainstream may outweigh familiarity with a programming language at some point. I'm not sure if the argument for "HTML+JS+CSS" is purely familiarity, there's also technical arguments like portability and future-compatibility. But I _do_ hope that the portability story will become better in the coming years beyond just this stack.