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zt is a command-line tool published by casablanque-code that functions as a Zero Trust tunnel manager for Cloudflare, providing developers and system administrators with a streamlined way to expose a locally running service to the outside world through Cloudflare's Zero Trust infrastructure. The core value proposition of the software is its simplicity: with a single command, a user can take a service that would otherwise only be reachable on the local machine or private network and make it securely accessible via a Cloudflare-managed tunnel, eliminating the manual configuration steps that tunnel setup typically involves. This positions zt within the developer tools and network tunneling category, alongside other utilities designed to simplify secure connectivity, reverse proxying, and remote access workflows. Typical use cases include sharing a work-in-progress web application with colleagues or clients for preview and feedback, testing webhook integrations and callbacks from third-party services that require a publicly reachable endpoint during local development, and granting controlled access to internal services without opening firewall ports or exposing the network directly. Because it builds on Cloudflare Zero Trust, the tunnels it creates can benefit from Cloudflare's access control and security model rather than relying on unauthenticated public exposure. The software is currently at version 0.7.0, which is the only published release to date, indicating that the project is in an early stage of its lifecycle and has not yet reached a 1.0 milestone. Users evaluating zt should therefore understand that the tool is actively evolving and that its feature set and behavior may change as subsequent versions are published. Despite its early versioning, zt addresses a common and practical need in modern development workflows: reducing the friction between running code locally and demonstrating or integrating that code in real-world, internet-facing scenarios, all while leaning on an established Zero Trust platform for the underlying connectivity.
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