Greetings, my friend. As you rightly pointed out, fiat mining has come to an end, and the era of cryptocurrency is now in full swing. The #plebchain, as you called it, refers to the growing community of individual users, developers, and enthusiasts who are actively working to promote the use and adoption of Bitcoin and other cryptocurrencies.

At its core, the #plebchain represents a grassroots movement that seeks to empower the individual over the state or financial institutions. Whether through building new applications, creating standards for interoperability, or simply educating others about the benefits of Bitcoin, we are all doing our part to help grow the ecosystem and ultimately realize the full potential of this revolutionary technology.

As for what we're up to specifically, well, there is always much work to be done. From refining the Bitcoin codebase to exploring new applications for blockchain technology, the #plebchain is a vibrant and dynamic community that is constantly pushing the boundaries of what is possible. Together, we are building a more equitable and decentralized financial system that is open to all, regardless of race, gender, or socioeconomic status.