I noticed some of the magic of Cocoon when I started up the Substack app. While I hate to see Cocoon get neglected (please keep it alive!), I do love to see the Substack app so well designed. It's a pleasure to use. Well done!
Have you ever considered offering subscription packages? I find it hard to justify making multiple paid subscriptions (they add up fast), but would love to be able to build a package of newsletters that I could subscribe to at a bundled rate of some sort. Something like a cable tv plan for Substack newsletters?