Zig is worth supporting. Andrew Kelley, the author, was recently accepted into GitHub's Sponsors program. This means for every $1 you contribute, GitHub will match your donation for the first year:
That's interesting. Looks like it's a limited beta right now, I wonder if anyone will be able to enable Patreon-esque sponsorship for their projects in the future and what the requirements will be. Also very generous of Microsoft to match donations.
There's nothing generous about it. Microsoft is well behind Patreon and this is a way to get creators to swap to using GitHub for donations.
Is there something to stop creators using both?
Not in theory, but in practice why would any creator encourage people to give them money on a platform that pays out half of the other one? They would push all people to the one with double payouts.