Not sure I understand the question correctly, but the way it's working is that Sentry have allocated a monthly budget to be distributed to their dependency tree. That budget gets trickled down to the projects that have signed in. The list and breakdowns are visible here
https://thanks.dev/p/gh/getsentry.
Donors decide how much to tip thanks.dev at time of donation.
Please let me know if I missed the question or if I can improve thanks.dev in any way. I'm very keen to learn. :)