[keycloak-user] PAM Module with Keycloak

Has anyone used a PAM module with keycloak in the past? Essentially we are interested in allowing Linux systems to authenticate with Keycloak. The PAM module would be used for multiple system level use cases such as Login, sFTP, SSH, LDAP, etc. I raised KEYCLOAK-9001 but the ticket got rejected as it falls outside of the scope of the Keycloak project. I am wondering if any one else in the community has had a similar usecase or is aware of any current modules for PAM and Keycloak? Thanks, Mike