setup raspberry pi

flake.nix

@@ -82,6 +82,14 @@
             ./nixos/fuchsia/configuration.nix
           ];
         };
+
+        lavender = nixpkgs.lib.nixosSystem {
+          specialArgs = { inherit inputs outputs; };
+          modules = [
+            # > Our main nixos configuration file <
+            ./nixos/lavender/configuration.nix
+          ];
+        };
       };
 
       # Standalone home-manager configuration entrypoint
@@ -95,6 +103,14 @@
             ./home-manager/sajenim.nix
           ];
         };
+
+        "admin@lavender" = home-manager.lib.homeManagerConfiguration {
+          pkgs = nixpkgs.legacyPackages.aarch64-linux;
+          extraSpecialArgs = { inherit inputs outputs; };
+          modules = [
+            ./home-manager/admin.nix
+          ];
+        };
       };
     };
 }

home-manager/admin.nix

@@ -0,0 +1,67 @@
+# This is your home-manager configuration file
+# Use this to configure your home environment (it replaces ~/.config/nixpkgs/home.nix)
+
+{ inputs, outputs, lib, config, pkgs, ... }: {
+  # You can import other home-manager modules here
+  imports = [
+    # If you want to use modules your own flake exports (from modules/home-manager):
+    # outputs.homeManagerModules.example
+
+    # Or modules exported from other flakes (such as nix-colors):
+    # inputs.nix-colors.homeManagerModules.default
+
+    # You can also split up your configuration and import pieces of it here:
+
+    # Programs
+    ./programs/git.nix
+  ];
+
+  nixpkgs = {
+    # You can add overlays here
+    overlays = [
+      # Add overlays your own flake exports (from overlays and pkgs dir):
+      outputs.overlays.additions
+      outputs.overlays.modifications
+      outputs.overlays.unstable-packages
+
+      # You can also add overlays exported from other flakes:
+      # neovim-nightly-overlay.overlays.default
+
+      # Or define it inline, for example:
+      # (final: prev: {
+      #   hi = final.hello.overrideAttrs (oldAttrs: {
+      #     patches = [ ./change-hello-to-hi.patch ];
+      #   });
+      # })
+    ];
+    # Configure your nixpkgs instance
+    config = {
+      # Disable if you don't want unfree packages
+      allowUnfree = true;
+      # Workaround for https://github.com/nix-community/home-manager/issues/2942
+      allowUnfreePredicate = (_: true);
+    };
+  };
+  
+  # Enable home-manager
+  programs.home-manager.enable = true;
+
+  home = {
+    # Setup our user environment
+    username = "admin";
+    homeDirectory = "/home/admin";
+    sessionVariables = {
+      EDITOR = "vim";
+    };
+  
+    # Install some packages
+  };
+
+  # Copy user configuration
+ 
+  # Nicely reload system units when changing configs
+  systemd.user.startServices = "sd-switch";
+
+  # https://nixos.wiki/wiki/FAQ/When_do_I_update_stateVersion
+  home.stateVersion = "22.11";
+}

nixos/lavender/configuration.nix

@@ -0,0 +1,169 @@
+# This is your system's configuration file.
+# Use this to configure your system environment (it replaces /etc/nixos/configuration.nix)
+
+{ inputs, outputs, lib, config, pkgs, ... }: {
+  imports =
+    [ # Include the results of the hardware scan.
+      ./hardware-configuration.nix
+    ];
+  
+  nixpkgs = {
+    overlays = [
+      outputs.overlays.additions
+      outputs.overlays.modifications
+      outputs.overlays.unstable-packages
+    ];
+    config = {
+      allowUnfree = true;
+    };
+  };
+
+  nix = {
+    autoOptimiseStore = true;
+    gc = {
+      automatic = true;
+      dates = "weekly";
+      options = "--delete-older-than 30d";
+    };
+    # Free up to 1GiB whenever there is less than 100MiB left.
+    extraOptions = ''
+      min-free = ${toString (100 * 1024 * 1024)}
+      max-free = ${toString (1024 * 1024 * 1024)}
+    '';
+    
+    registry = lib.mapAttrs (_: value: { flake = value; }) inputs;
+    nixPath = lib.mapAttrsToList (key: value: "${key}=${value.to.path}") config.nix.registry;
+    settings = {
+      experimental-features = "nix-command flakes";
+      auto-optimise-store = true;
+    };
+  };
+
+  boot = {
+    kernelPackages = pkgs.linuxPackages_rpi4;
+    tmpOnTmpfs = true;
+    initrd.availableKernelModules = [ "usbhid" "usb_storage" ];
+    # ttyAMA0 is the serial consolee broken out to the GPIO
+    kernelParams = [
+      "8250.nr_uarts=1"
+      "console=ttyAMA0,115200"
+      "console=tty1"
+      # A lot of GUI programs need this, nearly all wayland applications
+      "cma=128M"
+    ];
+  };
+
+  # Required for the Wireless firmware
+  hardware.enableRedistributableFirmware = true;
+  
+  networking = {
+    hostName = "lavender";
+    networkmanager = {
+      enable = true;
+    };
+  };
+
+  
+    
+    
+  
+  # Use the extlinux boot loader. (NixOS wants to enable GRUB by default)
+  boot.loader.grub.enable = false;
+  # Enables the generation of /boot/extlinux/extlinux.conf
+  boot.loader.generic-extlinux-compatible.enable = true;
+
+  # networking.hostName = "nixos"; # Define your hostname.
+  # Pick only one of the below networking options.
+  # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
+  # networking.networkmanager.enable = true;  # Easiest to use and most distros use this by default.
+
+  # Set your time zone.
+  # time.timeZone = "Europe/Amsterdam";
+
+  # Configure network proxy if necessary
+  # networking.proxy.default = "http://user:password@proxy:port/";
+  # networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";
+
+  # Select internationalisation properties.
+  # i18n.defaultLocale = "en_US.UTF-8";
+  # console = {
+  #   font = "Lat2-Terminus16";
+  #   keyMap = "us";
+  #   useXkbConfig = true; # use xkbOptions in tty.
+  # };
+
+  # Enable the X11 windowing system.
+  # services.xserver.enable = true;
+
+
+  
+
+  # Configure keymap in X11
+  # services.xserver.layout = "us";
+  # services.xserver.xkbOptions = {
+  #   "eurosign:e";
+  #   "caps:escape" # map caps to escape.
+  # };
+
+  # Enable CUPS to print documents.
+  # services.printing.enable = true;
+
+  # Enable sound.
+  # sound.enable = true;
+  # hardware.pulseaudio.enable = true;
+
+  # Enable touchpad support (enabled default in most desktopManager).
+  # services.xserver.libinput.enable = true;
+
+  # Define a user account. Don't forget to set a password with ‘passwd’.
+   users.users.admin = {
+     isNormalUser = true;
+     extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
+   };
+
+  # List packages installed in system profile. To search, run:
+  # $ nix search wget
+  environment.systemPackages = with pkgs; [
+    vim # Do not forget to add an editor to edit configuration.nix! The Nano editor is also installed by default.
+    wget
+    git
+    home-manager
+  ];
+
+  # Some programs need SUID wrappers, can be configured further or are
+  # started in user sessions.
+  # programs.mtr.enable = true;
+  # programs.gnupg.agent = {
+  #   enable = true;
+  #   enableSSHSupport = true;
+  # };
+
+  # List services that you want to enable:
+
+  # Enable the OpenSSH daemon.
+  services.openssh = {
+    enable = true;
+    permitRootLogin = "no";
+  };
+
+  # Open ports in the firewall.
+  # networking.firewall.allowedTCPPorts = [ ... ];
+  # networking.firewall.allowedUDPPorts = [ ... ];
+  # Or disable the firewall altogether.
+  # networking.firewall.enable = false;
+
+  # Copy the NixOS configuration file and link it from the resulting system
+  # (/run/current-system/configuration.nix). This is useful in case you
+  # accidentally delete configuration.nix.
+  # system.copySystemConfiguration = true;
+
+  # This value determines the NixOS release from which the default
+  # settings for stateful data, like file locations and database versions
+  # on your system were taken. It‘s perfectly fine and recommended to leave
+  # this value at the release version of the first install of this system.
+  # Before changing this value read the documentation for this option
+  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
+  system.stateVersion = "22.11"; # Did you read the comment?
+
+}
+

nixos/lavender/hardware-configuration.nix

@@ -0,0 +1,33 @@
+# 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" "usbhid" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/44444444-4444-4444-8888-888888888888";
+      fsType = "ext4";
+    };
+
+  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.eth0.useDHCP = lib.mkDefault true;
+  # networking.interfaces.wlan0.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "aarch64-linux";
+  powerManagement.cpuFreqGovernor = lib.mkDefault "ondemand";
+}