Aalto, and Finland in general, feature very active student communities, especially in the MSc and BSc programs. There are notorious groups raiding Helsinki-Stockholm Viking and Silja Line ferries, there are clubs teaching sailing, and there are groups promoting Lean or PL research.
OtaNix Ry, a non-profit run by inspired students, is organizing a Nix Workshop this Wednesday at the Aalto University. Join! https://discourse.nixos.org/t/nix-meetup-helsinki/48211/10