[bmitc]

It's been a bit since I looked at this last, but the notebook kernel would be written in a .NET language but can freely defer to whatever else underneath the hood. So F# could provide the glue to the notebook interface while deferring to some Racket server, such as a REPL server. I might investigate this myself.

[gus_massa]

If you ever decide to try, please post it in the Discourse group. People will be happy to heard about it and perhaps someone may help.

(I'm too busy to help just now, and I never made the VB6 -> VB.net transition.)