OpenRMF OSS is a great software suite for people or organizations/agencies that are looking to manage a single system ATO or project. It is web based, has authentication and authorization via Keycloak, and allows uploading of SCAP scans, checklists, and Nessus ACAS results files for tracking and dashboards.
The open source version highlights are below:
Please visit our OpenRMF OSS Website for more information, links to the Slack community, as well as links for the GitHub project code and repositories to help shape and enhance the software. You could also visit our OpenRMF OSS Demo to try it out yourself.