...but I cannot for the life of me find a place to do that here or on https://carmelo-electronics.itch.io/pine-creek. Would you be able to help me complete my purchase of a digital copy?

Thank you :)

Sorry, I meant to say I couldn't purchase the game here: https://incube8games.com/blogs/games/pine-creek

Standard edition: https://incube8games.com/products/pine-creek-gbc

Collector's edition: https://incube8games.com/products/pine-creek-gbc-collectors-edition