I just came back home from Google Summer of Code 2025 Mentor Summit. We were 185 mentors from 133 organizations and it was amazing! Google Summer of Code (GSoC) is a program organized by Google with the focus to bring new developers to open source projects. The NetBSD Foundation has been participating in GSoC since 2005.After nearly a decade being part of GSoC for The NetBSD Foundation, first as student and then as mentor and org admin, I finally attended my first GSoC Mentor Summit! That was a fantastic, very intense and fun experience! I met with a lot of new folks and learned about a lot of other cool open source projects. Let's share my travel notes!