Chris Hannah is a UK-based senior software engineer at WorldFirst (Ant Group) who moonlights as an indie app maker. He builds Text Case, a text-transformation utility for iOS, iPadOS and macOS that has grown from 7 to 50-plus formats, plus Text Shot and a Text Case command-line tool. He writes across three blogs and a monthly long-form newsletter about indie tech, productivity, and the craft of working in bursts.

Zach Lloyd is the founder and CEO of Warp, the Rust-based terminal that grew up into an agentic development environment. A former Google principal engineer who led the Docs and Sheets teams, he looked at the one tool every programmer touches and noticed it had barely changed in 40 years. Warp's answer: a command line that reads natural language, runs AI agents, and as of 2025 codes by prompt. The company has raised roughly $73-75M from Sequoia, GV, Dylan Field and Elad Gil, and went from its first $1M of ARR in 300-plus days to adding $1M every few days.
Dr. Bunsen is the long-running weblog of Seth Brown, a data scientist who built a cult following among Mac power users by treating productivity as a science experiment. He writes precise, unhurried essays on Mac scripting, Markdown workflows, standing desks, and the art of telling stories with data. By day he studies complex systems and the structure of the internet; by night he ships small, sharp command-line tools and chronicles the obsessive pursuit of a frictionless workspace.
Joshua Levy is the Co-Founder and CEO of Holloway, a San Francisco-based digital publishing platform that produces comprehensive expert-reviewed guides on professional and entrepreneurial topics. A mathematician-turned-engineer, Levy previously served as a founding engineer at BloomReach and held infrastructure roles at Viv Labs (acquired by Samsung) and SRI International where he worked alongside the original Siri team. He is perhaps best known in technical circles as the creator of 'The Art of Command Line' on GitHub - a guide with over 150,000 stars translated into 14 languages and read by more than 2 million people. At Holloway, he has pioneered a new model of expert-driven digital publishing, raising $4.6M in seed funding from NEA, the New York Times Company, and South Park Commons, and co-authoring guides on equity compensation and technical recruiting that have collectively reached millions of readers.