Got NixOS file structure working (for the most part)

.config/nixos/flake.nix

@@ -0,0 +1,38 @@
+{
+  description = "System flake";
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    stylix.url = "github:danth/stylix";
+    stylix.inputs.nixpkgs.follows = "nixpkgs";
+  };
+  outputs = { self, nixpkgs, ... }@inputs: {
+    nixosConfigurations = {
+      mecca = nixpkgs.lib.nixosSystem {
+        system = "x86_64-linux";
+        specialArgs = {inherit inputs;};
+        modules = [
+          ./laptop/mecca/configuration.nix
+          inputs.stylix.nixosModules.stylix
+        ];
+      };
+      syntheticnexus = nixpkgs.lib.nixosSystem {
+        system = "x86_64-linux";
+        specialArgs = {inherit inputs;};
+        modules = [
+          ./laptop/syntheticnexus/configuration.nix
+          inputs.stylix.nixosModules.stylix
+        ];
+      };
+
+    }; 
+
+    /*nixpkgs.lib.nixosSystem {
+      specialArgs = {inherit inputs;};
+      modules = [
+        ./configuration.nix 
+	      inputs.stylix.nixosModules.stylix
+      ];
+    };
+    */
+  };
+}

.config/nixos/laptop/mecca/flake.nix

@@ -1,16 +0,0 @@
-{
-  description = "System flake";
-  inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
-    stylix.url = "github:danth/stylix";
-  };
-  outputs = { self, nixpkgs, ... }@inputs: {
-    nixosConfigurations.mecca = nixpkgs.lib.nixosSystem {
-      specialArgs = {inherit inputs;};
-      modules = [
-        ./configuration.nix 
-	inputs.stylix.nixosModules.stylix
-      ];
-    };
-  };
-}

.config/nixos/laptop/syntheticnexus/configuration.nix

@@ -0,0 +1,167 @@
+{ config, pkgs, inputs, ... }:
+
+{
+  imports =
+    [
+      ./hardware-configuration.nix
+    ]; 
+
+  # Enable automatic system updates
+  system.autoUpgrade = {
+    enable = true;
+    flake = inputs.self.outPath;
+    flags = [
+      "--update-input"
+      "nixpkgs"
+      "-L" # print build logs
+    ];
+    dates = "weekly";
+    randomizedDelaySec = "45min";
+  };
+  # Allow non-free software (RMS will be mad at me :<)
+  nixpkgs.config.allowUnfree = true;
+  # Enable nix-command and flakes
+  nix.settings.experimental-features = [ "nix-command" "flakes"];
+
+
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+  systemd.tpm2.enable = false;
+  
+  networking.hostName = "syntheticnexus";
+
+  networking.networkmanager.enable = true;
+
+  time.timeZone = "America/St_Thomas";
+
+  i18n.defaultLocale = "en_US.UTF-8";
+  services.xserver.xkb = {
+    layout = "us";
+    variant = "";
+  };
+
+  stylix = {
+    enable = true;
+    image = ./bg.jpg;
+  };
+
+  # Using ly as TUI display manager, with minimal Gnome configuration
+  services.displayManager.ly.enable = true;
+  services.desktopManager.gnome.enable = true;
+  services.gnome.core-apps.enable = false;
+  services.gnome.core-developer-tools.enable = false;
+  services.gnome.games.enable = false;
+  environment.gnome.excludePackages = with pkgs; [ gnome-tour gnome-user-docs ];
+
+  # using piprewire cuz embrace muh modernity
+  services.pipewire = {
+    enable = true;
+    pulse.enable = true;
+  };
+
+  services.libinput.enable = true; # for laptop touchpad
+
+  # Laptop battery optimizations
+  # NOTE: Comment out if on PC/Not required for your rig
+  /* services.tlp = {
+    enable = true;
+    settings = {
+      CPU_SCALING_GOVERNOR_ON_AC = "performance";
+      CPU_SCALING_GOVERNOR_ON_BAT = "powersave";
+
+      CPU_ENERGY_PERF_POLICY_ON_AC = "performance";
+      CPU_ENERGY_PERF_POLICY_ON_BAT = "power";
+
+      CPU_MIN_PERF_ON_AC = 0;
+      CPU_MAX_PERF_ON_AC = 100;
+      CPU_MIN_PERF_ON_BAT = 0;
+      CPU_MAX_PERF_ON_BAT = 20;
+
+      START_CHARGE_THRESH_BAT0 = 40; # 40 and below it starts to charge
+      STOP_CHARGE_THRESH_BAT0 = 80; # 80 and above it stops charging
+    };
+  };
+  services.auto-cpufreq.enable = true;
+  services.auto-cpufreq.settings = {
+    battery = {
+      governor = "powersave";
+      turbo = "never";
+    };
+    charger = {
+      governor = "performance";
+      turbo = "auto";
+    };
+  };
+  powerManagement.powertop.enable = true; */
+
+  /* # Kanata setup 
+  # Mostly copied from https://dev.to/shanu-kumawat/how-to-set-up-kanata-on-nixos-a-step-by-step-guide-1jkc
+  boot.kernelModules = [ "uinput" ]; # Enable uinput kernel module
+  hardware.uinput.enable = true; # Enable uinput
+  # Set up udev rules for uinput
+  services.udev.extraRules = '' 
+    KERNEL=="uinput", MODE="0660", GROUP="uinput", OPTIONS+="static_node=uinput"
+  '';   
+  users.groups.uinput = {  }; # ensure uinput group exists
+  # Add Kanata service user to necessary groups
+  systemd.services.kanata-internalKeyboard.serviceConfig = {
+    SupplementaryGroups = [
+      "input"
+      "uinput"
+    ];
+  };
+  # Kanata configuration
+  services.kanata = {
+    enable = true;
+    keyboards = {
+      internalKeyboard = {
+        devices = [
+          "/dev/input/by-path/platform-i8042-serio-0-event-kbd"
+        ];
+      extraDefCfg = "concurrent-tap-hold yes";
+      config = builtins.readFile(builtins.fetchurl {
+        url = https://git.luluslly.xyz/lulusilly/dotfiles/raw/branch/master/.config/kanata/conf.kbd;
+        sha256 = "";
+      });
+      };
+    };
+  }; */
+
+  users.users.lunita = {
+    isNormalUser = true;
+    description = "Lunita";
+    extraGroups = [ "networkmanager" "wheel" ];
+    packages = with pkgs; [];
+    # shell = pkgs.zsh;
+  };
+
+  environment.systemPackages = with pkgs; [
+    curl
+    wget
+    neovim
+    git
+    gnome-console
+    gnomeExtensions.blur-my-shell
+    gnomeExtensions.just-perfection
+    gnomeExtensions.paperwm
+    nyxt
+ ];
+
+  # Zsh
+  programs.zsh.enable = true;
+  # Browser
+  programs.firefox.enable = true;
+  # Tailscale
+  services.tailscale.enable = true;
+  # Syncthing
+  services.syncthing.enable = true;
+
+  programs.gnupg.agent = {
+    enable = true;
+    enableSSHSupport = true;
+  };
+
+  services.openssh.enable = true;
+
+  system.stateVersion = "25.05";
+}

.config/nixos/laptop/syntheticnexus/hardware-configuration.nix

@@ -0,0 +1,42 @@
+# 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" "ahci" "usb_storage" "sd_mod" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-intel" ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/c7f03532-bbad-4c5d-9309-052c7cb7f63c";
+      fsType = "ext4";
+    };
+
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-uuid/2A5E-652D";
+      fsType = "vfat";
+      options = [ "fmask=0077" "dmask=0077" ];
+    };
+
+  swapDevices =
+    [ { device = "/dev/disk/by-uuid/fcd83e93-64eb-40be-97ae-3e512bd8f97e"; }
+    ];
+
+  # 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.enp4s0.useDHCP = lib.mkDefault true;
+  # networking.interfaces.wlp0s20f0u5.useDHCP = lib.mkDefault true;
+  # networking.interfaces.wlp5s0.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}