#3945 [Core feature] use of "url_to_fs" from fsspec.core in FileAccessProvider Issue created by timheb ### Motivation: Why do you think this is important? Currently it is difficult to use a custom fsspec protocol in flytekit. You can only implement configurations for s3 or gs. With

url_to_fs

you could implement dynamic configurations in your own protocol which can also be used as raw_output_prefix. ### Goal: What should the final outcome look like, ideally? You can define your own fsspec protocols which are based on existing ones. Special credencial handling can be done in

_get_kwargs_from_urls

. Also, the protocol can be used as raw_output_prefix example:

class MyFileSystem(AzureBlobFileSystem):
    @staticmethod
    def _get_kwargs_from_urls(path):
        # ...
        return kwargs

### Describe alternatives you've considered Do not know any alternative ### Propose: Link/Inline OR Additional context Could already be considered here: flyteorg/flytekit#1775 ### Are you sure this issue hasn't been raised already? • Yes ### Have you read the Code of Conduct? • Yes flyteorg/flyte