Can I somehow run ktor server app inside kotlin notebook (intellij managed kernel)? My first try gave me "Connection refused" (on localhost client).

Hi! It should be possible, at least I know about successful attempts. We can take a look on the problems you have

Hi, maybe there is a configuration for jupyter kernels somewhere, so I could "allow" connections at least from localhost? I don't even know if my issue is related to the fact that it's intellij managed kernel (I never tried such things on any other jupyter kernels)

Yes, you can. I showed it in some talks. Let me find an example

Looks awesome. It worked in my Intellij notebook second time I tried. Also my own ktor server experiment is working now. I guess it's just that the kotlin-kernel isn't stable yet and sometimes needs restarting or sth. Or maybe I didn't clean up sth properly. Anyway generally I can confirm that ktor server inside intellij managed notebook is working.