Hi everyone — I'm the maker. I built Zone solo over the past ~4 months. It's an AI coding agent that runs in your terminal — multi-file edits, runs commands, plan mode where you review and steer before anything executes. Two things mattered most to me: it's self-hosted (runs entirely on your machine) and BYOK — you bring your own Anthropic/OpenAI key and pay the provider directly. The reason I built it: you should be able to run real coding work for cents, with no subscription and no usage caps gating how much you build. Cost is the main lens — a /metrics command shows the exact cost, tokens, and model for every run, and a lot of the internals exist to keep that number down (tier-aware model routing, cache-aware prompting, output reduction). I've been dogfooding it hard — I even used Zone to build Zone's own features. It's open source (~50K lines of TypeScript, AGPL-3.0) and early — v0.0.x, solo, rough edges — so I'd love your feedback, especially on the cost model and the workflow. Self-hosted install, no account: https://github.com/BedreddinErka... Happy to answer anything here!

Zone - Self-hosted, BYOK AI coding agent — cents per run, no caps

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