It is great to see GNU Artanis still going strong.
I toyed with it a number of years ago.. perhaps before it was called Artanis. At that time I was invested in GNU Guile being my 'general purpose' programming language. I was even adding GNU Guile into my game as a frontend language. It was pretty good.
Overall I really enjoyed using Artanis. Before you had Swagger, etc, I was wrapping Artanis code to autogen helper/documentation pages... Scheme made that process far easier than other languages would.
To be honest, although I still toy about with GNU Guile, I have to admit it never was the main language I wanted it to be. For one reason or another, I moved on to other tools and languages. From memory, one of the reasons was GNU Guile was not that good (if installed at all) on Windows systems.
(Of course, now that we have WSL, Guile is much easier available)
Honestly I hope GNU Guile gets more love. If Guile gets more love -- so will Artanis. Personally, I think GNU Guile would have been better than Python but I accept that might be my bias showing.
Once I finish one of my jobs, I no longer need a Windows PC. I will be installing Linux and, likely......... GNU Guix Distro. So I will likely be more invested in GNU Guile, again.