When I read here, I do not see any mention of it:
https://news.callisto.network/decentralized-file-storage-of-callisto/Callisto File System solves a problem of independent and securely storing an archive of security audit reports. The main purpose of this file system is to provide an opportunity to upload, store and view security audit reports, independently from any third-party services. At the same time, the Callisto file system enables users to store custom files in a distributed storage maintained by elected Callisto IPFS-host-nodes. The system can be scaled depending on demand.