BTBF is an engineer with over 20 years of experience in server infrastructure operations and software development, currently focusing on Cardano stake pool operations and tooling.He operates X-StakePool (XSP/XSP2) and leads SPO JAPAN GUILD, one of the largest SPO communities in Japan. He has developed open-source tools such as SPOKIT and SPO Block Notify, which are widely used by stake pool operators around the world.BTBF also actively implements and tests research-driven features such as Ouroboros Genesis, Calidus Keys, Mithril, and UTXO-HD, providing feedback and practical deployment models for real-world operations. In addition, he runs Cardanoism, a Japanese-language platform that translates and localizes Project Catalyst proposals, making it easier for Japanese ADA holders to participate in the global ecosystem.