Hackacity is a hackathon promoted by Porto Digital that challenges participants to explore the potential of the city's open data to develop solutions with a real impact on the community. Held since 2015, the event has established itself as a space for experimentation and innovation, bringing together experts, academics and data enthusiasts around concrete urban challenges. Through data analysis and visualisation, teams work collaboratively to propose technological solutions that respond to real problems in the city. The most recent edition focused on digital rights, reinforcing the importance of privacy, freedom of expression and data protection in the urban and digital context. Hackacity continues to position itself as an initiative that combines data science, citizenship and open