Aleo announced the terms of the drop

You can claim tokens if you have participated and earned rewards in one of the following programs:

The Ambassadors Program
Setup Ceremony

Testnet 2
- Top 100 Awards
- Credits Mined
- GitHub PRs
- Pool Testers
- Pool Operators

Testnet 3
- Prover Incentives
- Deploy Incentives
Testnet Beta
- Prover Incentives II

ZPrize 2022/2023
zkML Initiative
Enigma

https://aleo.org/post/incentives-program-distribution/

Great news! Excited to see the community rewarded for their contributions. Can't wait to claim my tokens from the Setup Ceremony and Testnet 3 Prover Incentives!