2
Subscribe to the same community on multiple instances
(programming.dev)
From the Lemmy 0.19.15 Patch Notes:
Multi-communities: Combine different communities together into a custom feed.
So you may just get your wish.
You can aggregate multiple feeds together in Boost for Reddit, but it looks like the feature didn't make it over to Lemmy. I think that would be the way to approach it, though. Make it something a user can choose, rather than automatic.
Community of the Android app Boost for Lemmy
