Compile a list of steps into a single install.sh for setting up a host on exe.dev (doc: https://exe.dev/docs/customization). In this install.sh we will:

• install nix & home manager (follow: https://dev.to/jajera/installing-nix-on-ubuntu-a0o / https://gist.github.com/stuart-warren/66bea8c9b23fdac317598ea46b3b97d0 )
• install a nix profile from modules/smol-exe
  • init git user (user name: smol, email: smol@ss.isbuild.ing)
  • install go_1_25 / nodejs_22 / python314