The Trino community is very active and helpful on Slack, with users and developers from all around the world. If you need help using or running Trino, this is the place to ask. Check out the following channels, and find many more for specific topics.
Help build the next generation of fast, distributed SQL query engines for big data analytics. Trino is maintained by hundreds of people around the globe. Over the years, the Trino project has developed an extensive vision of the software and a strong development philosophy.
Understanding these helps you get up to speed on the software and how the project works quickly.