The Tsinghua image you are looking for is just the image of homebrew. Homebrew is only responsible for saving the meta info of the software package, not the software package itself. Each meta info contains the download address of the specified software package.
However, this is not a problem with homebrew. Note that the error was generated when installing cmake, a dependency of mysql, which means that the SSL handshake failed (this has nothing to do with circumvention or not). You can try installing the latest openssl and of course use homebrew to install it.
The Tsinghua image you are looking for is just the image of homebrew. Homebrew is only responsible for saving the meta info of the software package, not the software package itself. Each meta info contains the download address of the specified software package.
However, this is not a problem with homebrew. Note that the error was generated when installing cmake, a dependency of mysql, which means that the SSL handshake failed (this has nothing to do with circumvention or not). You can try installing the latest openssl and of course use homebrew to install it.