home-manager/shell/bash.nix

{...}: {
  programs.bash = {
    enable = true;
    enableCompletion = true;
    bashrcExtra = ''

      PS1='[\u@\h \W]\$ '

    '';

    profileExtra = ''

      eval "$(ssh-agent -s)"
      ssh-add ~/.ssh/git_school
      ssh-add ~/.ssh/git_personal
      ssh-add ~/.ssh/id_ed25519

    '';
  };
}