I saw that you have a ticket for S3 compatibility, that would be nice: S3-compatible API · Issue #692 · eigerco/polka-storage · GitHub
I am using filebase.com
currently to archive things, since it integrates with the AWS cli through S3 compat. But I would rather use something Polkadot powered
Another thing that I think is very useful is mounting it into the file system. I tried Sia coin (storage as well) a few times over the years and was always disappointed at how badly it integrates with Linux or MacOs. They do not offer a simple CLI where you can do sia mount --config-whatever.... --mount-path /mnt/archive
. It could be very nice to have this, since it makes it usable for non-tech users as well.
As example, there is the ProtonDrive MacOs UI app which makes it a no-brainer to mount a remote drive.