Day 6: Exploring the UI design with Google Stitch

A design session using Google Stitch to explore visual directions for the SessionClick main screen — plus a first proper look at project time and costs.

April 12, 2026 · 3 min · Karl-Ernst Kiel

Day 5: UI design, a foreground service, and a hard sync problem

Today had three acts: sketching the full UI concept, building a foreground service, and solving an audio/visual sync problem that turned out to require a C++ fix.

April 11, 2026 · 6 min · Karl-Ernst Kiel

Day 4: First audio prototype running on a real device

The metronome clicks on a real Android device. Here’s how Claude handled the architecture, Gemini wrote the code, and I directed traffic between them.

April 10, 2026 · 6 min · Karl-Ernst Kiel

Day 3: Setting up a knowledge base and organising the project

No app code written today, but the project infrastructure got a lot more solid — a knowledge base is live, four technical articles are written, and the project notes are finally tidy.

April 9, 2026 · 4 min · Karl-Ernst Kiel

Day 2: Picking a name, choosing an architecture, and making the first commit

SessionClick has a name, a GitHub repo, and a KMP project skeleton. Here’s how the decisions fell.

April 8, 2026 · 4 min · Karl-Ernst Kiel

Day 1: Why I'm building a metronome app (and why it probably won't make money)

Starting a solo app project with AI assistance, a small budget, and realistic expectations.

April 4, 2026 · 4 min · Karl-Ernst Kiel