The ex-Twitter employees are among a rising number of independent app developers who have adopted Mastodon, the open-source social network that has witnessed spectacular growth since Elon Musk took over Twitter. The decentralised service currently has over 1.5 million users spread over around 10,000 servers. This, along with Mastodon’s open-source, “API-first” strategy, has attracted scores of developers eager to customise the service.
