Change flake.nix to allow different nixpkgs versions

hosts/default/hardware-configuration.nix

@@ -0,0 +1,45 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports =
+    [ (modulesPath + "/installer/scan/not-detected.nix")
+    ];
+
+  boot.initrd.availableKernelModules = [ "xhci_pci" "thunderbolt" "nvme" "usb_storage" "sd_mod" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-intel" ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/ad45b094-608d-4850-b5ba-0f3917947629";
+      fsType = "btrfs";
+      options = [ "subvol=root" ];
+    };
+
+  fileSystems."/home" =
+    { device = "/dev/disk/by-uuid/ad45b094-608d-4850-b5ba-0f3917947629";
+      fsType = "btrfs";
+      options = [ "subvol=home" ];
+    };
+
+  fileSystems."/nix" =
+    { device = "/dev/disk/by-uuid/ad45b094-608d-4850-b5ba-0f3917947629";
+      fsType = "btrfs";
+      options = [ "subvol=nix" ];
+    };
+
+  swapDevices = [ ];
+
+  # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
+  # (the default) this is the recommended approach. When using systemd-networkd it's
+  # still possible to use this option, but it's recommended to use it in conjunction
+  # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
+  networking.useDHCP = lib.mkDefault true;
+  # networking.interfaces.wlp0s20f3.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}

hosts/default/home.nix

@@ -0,0 +1,23 @@
+{
+    config,
+    pkgs,
+    ...
+}:
+{
+
+    imports = [
+    ../../modules/home
+    ];
+
+    home = {
+        username = "eesim";
+        homeDirectory = "/home/eesim";
+    };
+
+    home.file.".config/nvim".source = ../shared/dotfiles/nvim;
+    home.file.".tmux.conf".source = ../shared/dotfiles/tmux;
+
+    programs.home-manager.enable = true;
+
+    home.stateVersion = "23.11";
+}

hosts/default/system.nix

@@ -0,0 +1,39 @@
+# Edit this configuration file to define what should be installed on
+# your system. Help is available in the configuration.nix(5) man page, on
+# https://search.nixos.org/options and in the NixOS manual (`nixos-help`).
+
+{ 
+    lib,
+    config,
+    pkgs,
+    ...
+}: {
+    nix = {
+        settings = {
+            experimental-features = "nix-command flakes";
+        };
+    };
+
+    # Use the systemd-boot EFI boot loader.
+    boot.loader.systemd-boot.enable = true;
+    boot.loader.efi.canTouchEfiVariables = true;
+
+    # Set your time zone.
+    time.timeZone = "America/Chicago";
+
+    # Select internationalisation properties.
+    i18n.defaultLocale = "en_US.UTF-8";
+
+    # Define a user account.
+    users.users.eesim = {
+        isNormalUser = true;
+        extraGroups = [ "wheel" ];
+    };
+
+    # Do NOT change this value unless you have manually inspected all the changes it would make to your configuration,
+    # and migrated your data accordingly.
+    # For more information, see `man configuration.nix` or https://nixos.org/manual/nixos/stable/options#opt-system.stateVersion .
+    system.stateVersion = "23.11"; # Did you read the comment?
+
+}
+