With the Local Distributors out in the wild due to the gigaleak, any Gen 6 and 7 event distribution can be achieved.
With the above said, do note that the intent of this post is to support individuals that managed to get their hands on a dev unit with the apps, and not for piracy.
Standard instructions
1. Use Checkpoint on your 3DS
2. Download the files from this page, and extract them into your Checkpoint's extdata
3. Restore the extdata into the local distributors.
4. Launch