pi4

hosts/pi4/configuration.nix

@@ -0,0 +1,87 @@
+# 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`).
+
+{ config, lib, pkgs, ... }:
+let
+  user = "matt";
+  password = config.sops.secrets."jallen-nas/admin_password".path;
+  kernelBundle = pkgs.linuxAndFirmware.v6_6_31;
+in
+{
+  imports = [
+    ./boot.nix
+    ./impermanence.nix
+    ./networking.nix
+    ./sops.nix
+    ../default.nix
+    ../../modules/desktop-environments/cosmic/default.nix
+  ];
+
+  # Enable nix flakes and nix-command tools
+  nix = {
+    settings = {
+      substituters = [
+        "https://nixos-raspberrypi.cachix.org"
+      ];
+      trusted-public-keys = [
+        "nixos-raspberrypi.cachix.org-1:4iMO9LXa8BqhU+Rpg6LQKiGa2lsNh/j2oiYLNOQ5sPI="
+      ];
+    };
+  };
+
+  # Configure nixpkgs
+  nixpkgs = {
+    overlays = lib.mkAfter [
+      (self: super: {
+        # This is used in (modulesPath + "/hardware/all-firmware.nix") when at least 
+        # enableRedistributableFirmware is enabled
+        # I know no easier way to override this package
+        inherit (kernelBundle) raspberrypiWirelessFirmware;
+        # Some derivations want to use it as an input,
+        # e.g. raspberrypi-dtbs, omxplayer, sd-image-* modules
+        inherit (kernelBundle) raspberrypifw;
+      })
+    ];
+  };
+
+  system.nixos.tags = let
+    cfg = config.boot.loader.raspberryPi;
+  in [
+    "raspberry-pi-${cfg.variant}"
+    cfg.bootloader
+    config.boot.kernelPackages.kernel.version
+  ];
+
+  systemd.services.btattach = {
+    before = [ "bluetooth.service" ];
+    after = [ "dev-ttyAMA0.device" ];
+    wantedBy = [ "multi-user.target" ];
+    serviceConfig = {
+      ExecStart = "${pkgs.bluez}/bin/btattach -B /dev/ttyAMA0 -P bcm -S 3000000";
+    };
+  };
+
+  environment.systemPackages = with pkgs; [
+    git
+    libraspberrypi
+    raspberrypi-eeprom
+    raspberrypifw
+    raspberrypiWirelessFirmware
+    raspberrypi-armstubs
+    vim
+  ];
+
+  users = {
+    mutableUsers = false;
+    users."${user}" = {
+      isNormalUser = true;
+      hashedPasswordFile = password;
+      extraGroups = [
+        "wheel"
+        "docker"
+      ];
+      shell = pkgs.zsh;
+    };
+  };
+}