some form of "recurring reminder" that can be opted-into is probably not an optional feature.
get an email every N days with an LLM generated summary of these channels is the dream. for various reasons, I don't think it will work.
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an RSS feed is a less-involved option. but, the color-text boxes won't work the way I imagine them to. it will have to be a "text-only" version. 💡 which is how I have read these posts for years. but, is somewhat less user-friendly ...