Bill

I have built it in my repo. Here is the link: https://github.com/cxy5014/ios-app-signer/releases/tag/v1.13.2(1)

Because it is my self recompile, please ignore it.

I'm waiting for my pr to merge.(#214)

注意到清华镜像站和北外镜像站目前存储空间已得到极大缓解，能否添加相关的镜像？