I you're after something similar (write a SPA in non-JS) but you prefer Java or Kotlin, check out Flavour: https://flavour.sourceforge.io/

Comparison to Blazor:

* https://frequal.com/java/TeaVmVsBlazorWasm1-0.html

* https://frequal.com/java/TeaVmVsBlazorChart.html

Flavour podcast: https://castini.frequal.com/cast/show/Flavourcast/f7e171e8-2...

Java Magazine article: https://blogs.oracle.com/content/published/api/v1.1/assets/C...

Real, fast-loading apps made with Flavour:

* Wordii, a 5-letter word game: https://frequal.com/wordii

* Tea Sampler: Demo app with code samples of coding with Flavour: https://frequal.com/tea-sampler/