https://www.macdowell.org/apply/application-guidelines
They are open to international applications as well as US ones.
Also, people can apply jointly to work on a collaborative project, which might be an interesting way for far-flung Sphereans to meet up and work on something together for a few weeks.
Here's an impressive list of MacDowell Fellows who have won Pulitzer Prizes:
https://www.macdowell.org/assets/abo...ze-winners.pdf