is there any article showing the process of creating whatever you require to make your software connect to it? After creating a bucket, how to set up access keys (not to the whole account that might have many buckets but only to access that specific bucket), which permissions (access) to unblock, which one to to keep blocked etc. maybe there is a list of steps to follow, to make sure it all works without trial and error? Thank you again for your help.

There might be some confusion here. Strange, when I create a Vault, it does say S3 Glacier, but no buckets. Ok, I've read the article, thank you. How do you create a bucket to be S3 Glacier or Deep Archive? When I try to create a new bucket it does not seem to ask anywhere. But at least it has versioning. I know there could be lifecycle policy used to move objects to Glacier, but i prefer to avoid that and work directly with S3 Glacier deep archive. How can i do it to make it work with your software please?