nix remote builder setup with (co)lima

nix-remote-builder-with-colima.md

• install (co)lima

  I haved setup colima already, but you can setup lima vm directly without the (co).

• prepare the ssh config

  $ limactl show-ssh colima -f config >> ~/.ssh/config
  

  in my case, the host name is lima-colima.

• install nix in the vm

  run the standard nix install script in the vm: https://nixos.org/download.html

  $ ssh lima-colima
  $ sh <(curl -L https://nixos.org/nix/install) --no-daemon
  

• create symblic link to nix-store

  $ sudo ln -s $HOME/.nix-profile/bin/nix-store /usr/bin/
  

  this is to make sure the non-interactive ssh shell can find nix-store in PATH.

• test that it works

  $ nix store ping --store ssh://lima-colima
  Store URL: ssh://lima-colima