We need a xcode 10.1 to be installed on Mac ventura os to rebuild/test legacy apps.
Installing xcode10.1 shows its incompatible. Is it possible to install xcode10.1 on ventura os?
Error message: The version of Xcode installed on this Mac is not compatible with macOS Ventura.
Your usual options here are a maintaining an Intel Mac that will run Xcode 10.1, or an Intel Mac with a macOS version that will run Xcode 10.1 installed as a guest in a virtual machine, or moving support to "best effort with no rebuilds", or retiring and removing support for the older apps.