Hi Stephen,
Thanks for the feedback; I'm pretty excited to see community interest in this project! As for role setup, initially I was not thinking that role setup would be included as in my experience AWS admins usually use tools like Terraform to setup SSO permission sets and IAM policies to link to users/groups (basically treating entitlement management as a separate work stream from the user/group lifecycle management.)
However, I think that this could easily be achieved by adding support for event hooks to the SCIM client so that it can invoke additional commands (perhaps Terraform plans?) that will apply SSO permission sets to users/groups right after they are provisioned. I'll look into this.
Thanks again!
Walter