A Smooth Sea Never Made a Skillful Sailor

Zone 2 Trainer started as a simple idea: I wanted a lightweight way to stay honest about easy aerobic work without committing to another subscription or buying another dedicated device. The app became both a fitness tool and a test case for how far modern AI coding assistants can carry a non-mobile developer. For the last couple of months, I have been developing an Android application to enhance my endurance and recovery. Most applications on the market require an active subscription and a special device. With the current developments in AI-assisted software development, I was able to step out of my comfort zone and build an application from scratch using Android Studio, Antigravity, and Codex. That matters to me because I am not a developer by trade. I am closer to a tinkerer who is comfortable with scripts, databases, and infrastructure than someone who spends every day building polished mobile apps. Zone 2 Trainer became a useful test of how far AI coding tools can take someone l...

The AI product climate this week was weirdly clarifying. I am still not ready to move my development workflow back to Gemini after the rate-limit frustration, but I also have to admit that Google shipped a few things that made me pay attention again. At the same time, OpenAI reminded me that even the best developer tooling can feel unnecessarily confusing when the billing model sprawls across too many surfaces. Then OpenRouter raised a serious round of funding and made the case for a future where developers do not have to bet everything on one model vendor. That is the pattern I keep coming back to: the tools are getting better, but the surrounding product experience still matters just as much as the model. Gemini Is Back in My General-Purpose Rotation I have complained plenty about Gemini rate limits. The stricter enforcement hit the wrong nerve for me because it made the product feel unpredictable at exactly the moment I wanted to rely on it more. Once a tool makes me ration my...