The Warpcast Retro Grants 2024 program is offering $50,000 in grants to open-source projects that enhance developer productivity, particularly those used within the Farcaster network. Eligible projects must be MIT licensed, accept donations on GitHub, and be used by at least one Farcaster project. The focus is on projects that significantly impact developer efficiency, with individual grants ranging approximately from $5,000 to $10,000 for about 5 to 10 projects.