Hi Oleg, I am a complete beginner, and I was naive to think that doing this would be a breeze. Just to be clear, I never built anything in my life. I'd be happy to follow some instructions to get used to the process and learn lots of stuff in the process. You can find what I tried to do in the diff. $ guix build -L ~/repos/guix/gnu/packages sway meson.build:1:0: ERROR: Meson version is 0.53.2 but project requires >=0.54.0 But I don't understand why, since I update meson as well. Thanks. -- André Alexandre Gomes "Free Thought, Free World"