Felix Cloud Storage is a heroku add-on which lets you store files based on AWS S3. On the free tier you get up to 100 GB-Mo Shared Storage (monthly)
It looks like there is enough space on the shared bucket and therefore I should be able
to upload at least a file.
The issue I have is that when I try to create a shared space, it will throw an error:
I wanted to contact Felix support team but there is no such information. I was wondering if someone ever used felix-cloud on their Heroku app and if yes, what did you do different?
This is a very rare and special case where for file storage it's not feasible to use AWS S3 or other similar solutions, but it's rather required through a Heroku add-on.