Can you do real development from your phone — one-handed, on the subway?

I'm a senior developer in Seoul. My commute is long and the subway is always packed. Here's how I tried to make mobile development work — and where it fell apart.

Seoul subway is not quiet. You're standing, one hand gripping a bag, the other holding your phone. Coding the traditional way — IDE, terminal, file trees — is physically impossible. The screen is too small, your fingers too fat, and the text too tiny to read without squinting.

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The problem in a nutshell:

- One hand is always occupied — VSCode isn't built for that

- GitLab on mobile: tiny font, dense UI, constant zooming

- Managing issues, CI pipelines, and logs across tiny tabs is exhausting

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What I tried

In the age of AI agents, I realized: I don't need to write the code myself. I just need to manage it.

So I built a small site, connected it to GitLab, and set up this workflow:

1. Create a GitLab issue from my phone describing what I want built

2. CI/CD scheduler triggers — a runner picks it up automatically

3. AI agent resolves the issue — commits, tests, deploys

4. I review the result — from my phone, while still on the train

It worked. But then GitLab on mobile killed the experience. Too much visual noise. Too ma