New York offers online voter registration. You can register by mail to vote in New York by printing a voter registration form, filling it out, and mailing it to the local election office https://www.nassaucountyny.gov/566/Board-of-Elections
Early voting information for November 8, 2022 General Election at the Freeport Recreation Center – 130 East Merrick Rd, Freeport NY 11520. See dates :FINAL-Nassau-Early-Voting-Flyer-NOVEMBER-2022-5_26_22 (nassaucountyny.gov)