nixos-combined-flake/modules/nixvim/plugins/harpoon.nix

{
  plugins.harpoon = {
    enable = true;
    keymaps = {
      addFile = "<leader>m";
      navFile = {
        "1" = "<leader>1";
        "2" = "<leader>2";
        "3" = "<leader>3";
        "4" = "<leader>4";
      };
      toggleQuickMenu = "<leader>M";
    };
  };
}