Yeah, Frodo… isn’t that easy to work on projects with multiples languages that don’t integrate natively? That’s like a quest to Mordor: a lot of dangerous, pitfalls and epic battles against hordes of Bugs (or Orcs, you name it). In this situation, every developer would like to have a friend like Sam. Someone who would give interoperability among Elves, Dwarves, Java, Python, Scala, Node.js… and that still helps you to create a new language! Well, this friend exists. And he isn’t Sam. Smeagol would call it Precious, but its name is Graal VM. And in this session, we will show you how it will transform the way that you think and build software.