After the Old Port Festival ended its nearly 50-year run in 2019, Maine’s “city by the sea” was left without a signature summer kickoff. The Maine Academy of Modern Music aims to change that with Resurgam, a full day of free fun on Thompson’s Point featuring music all day, food trucks, a maker’s mall with local businesses and artists, a children’s parade, and even a limited run Resurgam beer made by Bissell Brothers.