trackboi: Made a markdown-powered Kanban for AI agents

For a while, I had some instructions in my AGENTS.md for how to “track” things in markdown files so it wouldn’t be painful to forget ideas or hand off work between agents. It worked surprisingly well, but it was hard to actually see what was going on at any given time. I couldn’t find many tools built for this purpose. The closest thing I found was Vibekanban, but the moment it asked me to log in, I had the usual reaction: fine, I’ll just build it myself. So here we are: yet another Kanban app.