I couldn't find any alternative tools, which is able to enable SSL Proxy, and comprehensive debugging tools (export, repeat, edit), so I came up the idea to write it by myself.
It's one of the tough decision I've made since I wasn't familiar with OS X Development and have no idea how to write a "Proxy"??? Most of the time I work in iOS development, I had no opportunity, experience on "proxying" stuff. It seems to out of my hand.
After devoting a couple of weeks for doing many experiments, it turns out that mitmproxy, which is an open source Python project and capable of intercepting the HTTPS response, could become the core of Proxyman.
In the very first prototype, I successfully integrated the mitmproxy binary and communicate through the socket as well as built the UI on top of that.
As a result, it works 😍, but the performance is really bad. It met the basic requirement and prove that Proxyman is able to real life.