I wanted to code locally on my phone without relying on SSH, VPS bills, etc. Most Android agentic coding apps are just that, SSH. PhoneCode bootstraps a real Alpine Linux rootfs using proot inside a native Kotlin container, giving you local shell, Python 3.12, Node.js, and git offline. It's running OpenCode underneath. As for the security, prompts go straight to the providers via models.dev with nothing in the middle (except system prompt). API keys are encrypted in the Android Keystore and there is zero background telemetry. The codebase is organized into clean Kotlin/JVM modules (app, agent, provider, etc.) with no external server dependencies.