This is my overlays config that I use on all other machine I have

  config = {
    nixpkgs = {
      overlays = [
        inputs.nur.overlay
        inputs.helix.overlays.default
        inputs.nix-ld-rs.overlays.default
        inputs.neovim-nightly.overlays.default
        inputs.rustaceanvim.overlays.default

        (final: prev: {
          stable = import inputs.stable {
            config = prev.config;
            system = prev.system;
          };
          grawlix = prev.callPackage ./home-manager/packages/grawlix.nix { };
          pix2tex = inputs.pix2tex.packages.${prev.system}.default;

          delta = final.stable.delta;
          swaylock-effects = final.stable.swaylock-effects;

          kattis-cli = prev.callPackage ./home-manager/packages/kattis-cli.nix { };
          kattis-test = prev.callPackage ./home-manager/packages/kattis-test.nix { };
          vimPlugins = prev.vimPlugins // {
            mini-nvim = prev.vimUtils.buildVimPlugin {
              version = "nightly";
              pname = "mini-nvim";
              src = inputs.mini-nvim;
            };

            neogit = prev.vimUtils.buildVimPlugin {
              version = "nightly";
              pname = "neogit";
              src = inputs.neogit;
            };
          };
        })
      ];
    };
  };

K900: I think it could be because I may have built using one configuration.nix that had ssh and now mine doesn't? When I try to run nixos-rebuild -I /mnt/c/Users/host/nixos/configuration.nix it errors with a 'nixos-config' was not found error. My configuration.nix is super simplified and looks like:

{ config, lib, pkgs, ...}:
{
imports = [
<nixos-wsl/modules>
];
wsl.enable = true;
wsl.defaultUser = "nixos";
system.stateVersion = "24.05";
}

This doesn't seem correct to me. Do you think this could be what's going wrong (and can you help fix up my configuration.nix if it is)?