Zero to App with AI, Part 5: Scaling Me, Not the AI

Around the middle of the project something flipped: the agent was no longer the bottleneck. I was. One session built a feature faster than I could specify the next one. Part 2 warned that multiplying agents multiplies cost. This part is about the places where parallelism and delegation genuinely paid, and the structures that kept it from becoming chaos. Parallel phases in worktrees The roadmap had independent phases queued up. Daily check-ins and a settings/themes page touched almost disjoint code. So they ran as separate sessions, simultaneously, each in its own git worktree, launched from pre-written, self-contained prompts. ...

July 17, 2026 · 5 min · 984 words · Nate