Hey @baker! Layer 1 (default) Eth transactions used a minimum payout threshold of $42.90. We used a gas price of 148 GWei, an Eth price of $1984.97, and an expected Gas per transaction amount of 36508 (all fairly conservative values, given recent trends). For the transaction to not cost more than 25% of the total payout, someone had to earn $42.90.
For Layer 2 transactions (zkSync), while we intend to eventually have a similar calculation (albeit resulting in a far, far lower minimum value), we once again used a minimum of zero.
We sent 390 layer 1 transactions (e.g., 390 SNOs earned more than $42.90 in the last month without opting into zkSync) and 578 zkSync transactions (e.g., 578 SNOs opted into zkSync and earned more than 0). Thanks to all who have opted into zkSync so far!