For those who don't follow the SoT Twitter:
Sea of Thieves on Twitter / X
Follow up tweet reads:
Game Pass Ultimate subscribers can access Perks through the Xbox console, Xbox App on PC, or Game Pass mobile app for iOS/Android. The Nightshine bundle will be available for three months from today.
You cannot access Perks via plying Duke with grog, he'll still ask for gold.
FYI: if you've already bought all these in-game with gold, there is an option to claim the code and not redeem it, so maybe you could gift it to a friend.
