Ask HN: How much have you paid to repo collaborators?

Recently started building a snippet reference on every programming language [1], and I'm thinking it might be a good idea to pay to contributors. Maybe sending a tip to buymeacoffee, patreon, others? Any collaborators out there: how much have you received on a free project?

[1]: https://github.com/snippetfinder/The-Quick-Snippet-Reference