Help me understand how to implement BackBlaze B2 using S3 flysystem (MinIO?)

Need someone knowledgeable who can help me understand how to simply get Backblaze B2 to work with my existing Amazon S3 flysystem adapter, a custom plugin already integrated into our custom site. I could get Amazon S3 to easily work with it but would like to try Backblaze B2. On their list of integrations [login to view URL] I saw one that is called Minio S3 Gateway I wonder if I can use this free open source Minio to make Backblaze B2 easily work with my existing S3 integration? If so, how to do this simply and easily? If not, how can I do this simply and easily? Thanks