I worked with a mesos config app, backed by git. Watching the whole go down when github died resolved none of us to ever trust it again for that sort of role.
Use s3. Honestly.
Use s3. Honestly.
Flipt Open-Source can be run to consume from these locations. You can go as far as configuring a workflow to publish on push, so that you can combine our managed UI with any of these distributions methods through Git.
With any of these backends (including Git), we periodically fetch and cache data in-memory. Evaluations work on an in-mem snapshot. So temporary downtime doesn't propagate into your applications being unable to get flag evaluations.