Since 1980, I've been developing a wide variety of commercial applications using APL, following an approach now recognised as "Agile Software Development."APL is one of the oldest programming languages in terms of history but remains one of the youngest in terms of its forward-thinking concepts. It's not only the most productive programming language but also arguably the one that brings the most joy to its users.Over the years, I've worked with nine large corporations, two mid-sized companies, and several smaller businesses, gaining a broad range of experience across diverse industries.Being deeply passionate about APL, I continue to dedicate a significant portion of my free time to APL-related projects, especially supporting open-source initiatives around Dyalog APL.In 2019 and 2020, I contributed to the design of Tatin, a Dyalog-specific package manager, and Cider, a Dyalog-specific project manager. Since 2021, I've implemented both tools and converted the APLTree library into packages along the way.