tatanakots/fuckprivateclient

FuckPrivateClient is a Go tool for extracting configuration files from proprietary proxy client applications. The README is written in Chinese and describes a utility that pulls the underlying network configuration out of private, closed-source clients so that the same configuration can be used with popular open-source alternatives such as Clash, v2rayN, and OpenClash. In the Chinese proxy service market, paid proxy providers often distribute custom, locked-down desktop clients rather than providing standard configuration files. This tool reverses that by extracting the configuration from the private client binary, letting the user run their chosen open-source client instead of the provider's proprietary one. The project currently documents support for specific Windows versions of a service called Fastlink, covering its standard edition (v1.19.23) and a lite edition (v3.0.3). The author notes in the README that the tool is intended for learning reverse-engineering techniques, and that the project does not endorse or recommend any particular proxy provider. There is also a disclaimer that the project takes no responsibility for the availability of any service or for funds users have paid to providers. Contributions are welcome: users who have other private clients they want analyzed can open an issue, and those who have already done analysis work can submit a pull request. The repository is open-source under the MIT license. The README is brief and does not cover installation or usage steps beyond the client compatibility list.