This is perhaps the easiest way to get your hands on an upgrade in Midnight Season 1—and nobody expected it to come from here!
Player Housing offers a new Weekly Quest: Community Engagement. This quest requires you to purchase one item from an Endeavour Trader in either Razorwind Shores or Founder’s Point using 
Community Coupons. In return, you will receive the following rewards.
That’s it. Buy one item, and get your hands on valuable upgrade materials, 
Voidlight Marl, 
Essence of Lumber, and more Community Coupons!
If you need a hand with the gear upgrade system, check out our useful guide below!
Gear Upgrading Guide