ActivityPub doesn't explain how collections are created or updated (it only mentions side effects of certain activities that affect collections). You can skip all of that and state that emoji catalog is server-managed. However, in that case the sentence "A standardized emoji catalog allows a C2S client to" wouldn't make sense.
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ActivityPub doesn't explain how collections are created or updated (it only mentions side effects of certain activities that affect special collections). You can skip all of that and state that emoji catalog is server-managed. However, in that case the sentence "A standardized emoji catalog allows a C2S client to" wouldn't make sense.