Apple Developer Program members can start moving their apps to Apple silicon today by applying for the Universal App Quick Start Program.
The program provides access to documentation, forums support, beta versions of macOS Big Sur and Xcode 12, and includes the limited use of a DTK, which will enable developers to build and test their Universal 2 apps.
The DTK, which must be returned to Apple at the end of the program, consists of a Mac mini with Apple’s A12Z Bionic SoC inside and desktop specs, including 16GB of memory, a 512GB SSD, and a variety of Mac I/O ports.
Developers can apply to the program at developer.apple.com, and the total cost of the program is $500.
https://www.apple.com/newsroom/2020/06/apple-announces-mac-transition-to-apple-silicon/