Gitcoin Grants 21 (GG21) has officially launched and will run until August 21, 2024, at 23:59 UTC. This round features 11 quadratic funding rounds, including specific rounds for Arbitrum and Celo, with a total of $30,000 in matching funds available for the CollabTech QF Round. Notably, the event encourages participation from both web3 and non-web3 projects, allowing credit card transactions to broaden the funding base. Among the participating projects, Rotkiapp is involved in three subrounds: Thriving Arbitrum Summer, Collabtech Round, and Celo Real World Builders. Additionally, a $125,000 ARB matching QF round is being offered, further incentivizing donations. The initiative aims to support impactful projects and foster collaboration within the community, with a strong emphasis on climate solutions and token engineering.