A year ago, Bluesky was opening up to the public and was known as one of the many X competitors that emerged after Elon Musk acquired the network formerly known as Twitter. Today, Bluesky’s social network has grown to over 36.5 million users, while the technology it’s built upon — the AT Protocol (or ATProto for short) — is being used to develop dozens more applications designed to work together as part of an open social web. The developers behind many of these apps attended the first conference...