Both are tourist cities with many businesses that are adopting bitcoin. Rolante has been doing this for a longer time and Santo Antonio is newer to the adoption, as far as I know.
Here are the project websites:

https://www.bitcoineaqui.com.br/
https://nostr.com/npub18fh6flnjt9aa3jlnp5k3kd9zr6v5mlpeczhdx4qheytfyyqfpe7s2y0lzm

I don't know if there are members of the communities here in SN.