Three weeks ago, I added a link for the Fluense site:
https://kotlinlang.slack.com/archives/C04RTD72RQ8/p1704742304053339
At the time, the landing page was done but the app was still WIP.
They just launched it, at
https://app.fluen.se
Normally I would hesitate to do a second showcase link so quickly after the first one, but the user got localization working! That's definitely the first time I've seen a working language picker on a Kobweb site.