When I was checking other storage solutions, almost all of them implement Amazon S3 api. So those who are already using amazon S3 can switch to their solution easily without needing to do code changes. I think some S3 api wrapper should be done into official libs. It should be quite easy and very handy for current well established projects to switch. For example vaults/clients can run Rest API for S3. Generally it is way easier to get users if existing projects can switch without doing any code changes. Of course this feature is low priority at current time.
This can be implemented by providing a layer providing the S3 api and talking to the safe network apis
Is not this for an App which will also change $ to SafeCoins and make an invoice?