https://www.kotlinprimer.com/basics/functions-variables/functions/

Pro Spring Boot 3 with Kotlin 3rd ed
Kotlin an Illustrated Guide ru
Kotlin in Action 2nd ed                             -  65  (of  849)
    ch 14, 15 - coro?

spring
https://kotlinlang.org/docs/jvm-get-started-spring-boot.html
https://spring.io/guides/tutorials/spring-boot-kotlin
https://docs.spring.io/spring-framework/docs/current/kdoc-api/

?
https://spring.io/guides/tutorials/spring-webflux-kotlin-rsocket

todo: use:
kt connekt
    pl/kt/tools/http/connekt.txt

https://kotl.in/curriculum
    https://kotlinlang.org/education/
    https://drive.google.com/drive/folders/1nN3LuyEfmBaSDZpnb4VA9kDuLakmVXH1

html-dsl
https://kotlinlang.org/docs/typesafe-html-dsl.html
https://ktor.io/docs/server-html-dsl.html

htmx
https://blog.jetbrains.com/idea/2024/09/introduction-to-htmx-for-spring-boot-developers/

htmx-integration
https://ktor.io/docs/htmx-integration.html#server-side-routing
https://github.com/anderssv/kotlin-htmx
https://kotlin-htmx.fly.dev/
https://www.youtube.com/watch?v=zJNkIJCQohU
https://www.youtube.com/watch?v=9OYn48xBzOY
https://www.corlaez.com/blog/kotlin-htmx.html
https://github.com/corlaez/kotlin-htmx
https://www.youtube.com/watch?v=Dpnj5qRWLHY
https://blog.codersee.com/quick-quide-to-htmx-kotlin/

dsl
https://kotlinlang.org/docs/type-safe-builders.html
https://frozenfractal.com/blog/2017/7/3/writing-a-test-dsl-in-kotlin/