It's called HCL Notes now: https://en.wikipedia.org/wiki/HCL_Notes

And Hashicorp are experts in HCL so I am sure they will love it.

This is hilarious.

Now, with 500% more Java and a configuration language that isn't XML. ;)

IBM switched off Notes to Microsoft 365, maybe two years ago or so.

I only correct you because it's an even bigger indictment of Notes that IBM switched off of it.

Been gone for a couple of years now. Outlook replaced it. Legacy Domino apps still around in various places though.