I'm a regular HN reader, yet I've never heard of half of these. This doesn't sound like the kind of stack you'd want to adopt if you ever want anybody else to work on the code.
Yeah. The official doc says that lila is a chess game server. It really isn't an immediate replacement for a general web stack.
However, I don't think the technologies he/she mentioned are little known. Scala, Akka and TypeScript are certainly well known. The last I heard, Vue was based on a fork of Snabbdom.
BTW, it may be worth notice that the code base of Lichess.org also uses Mithril. I used Vue in the past but converted my choice to Mithril afterwards. To me, Mithril is simpler to learn or use. My code using it is cleaner and easier to maintain. But this is certainly anecdotal and YMMV.
> I'm a regular HN reader, yet I've never heard of half of these
Scala, Akka, TypeScript, React...uh, where have you been?
Lichess is an impressive project, their chess app is not only excellent compared to everything else out there, it's incredibly efficient, and handles a ton of traffic with ease. I don't think the creators chose the stack without reason.