[AdamSC1]

Gitcoin does this.

It's a tool where users post bounties for features. Usually the owner of an open source project would set up a bounty and say "$xxx to fix this" and open source developers can apply to work on the problem, once its approved they get the funds.

But, if community members really value the project they can chip in more funding to the issue.

Currently the system is set up to use Ethereum and DAI (an ethereum USD stablecoin) to handle transactions, and Gitcoin's smart contract acts as the escrow account for the work.