Carson Gross September 21, 2026 TLDR Markdown is becoming source code, not documentation That Markdown should be checked in to /src , next to the code it produces Code and tests should be derived from that Markdown, rather than from ephemeral prompts (or at least prompt sessions should eventually turn into persisted Markdown) Intro In order to supplement my income as a professor at Montana State University, I do consulting on the side. I enjoy consulting and the act of writing code & helping build systems, both for their own sake and also because it keeps my skills relevant and allows me to teach students about the latest ideas in software development. Obviously the biggest thing to happen in development in the last few years is agentic coding: using LLMs to generate code in lieu of hand coding.…