add git, tidy foratting, fix initial nixpath so we dont need channels

flake.nix

@@ -4,44 +4,44 @@
     # nixpkgs.url = "github:NixOS/nixpkgs/nixos-22.11";
     #nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.05";
     nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
-
   };
 
-  outputs = { nixpkgs, ... }: let
+  outputs = {nixpkgs, ...}: let
     system = "x86_64-linux";
     pkgs = import nixpkgs {
       inherit system;
     };
     lib = nixpkgs.lib;
-
-  
-
   in rec {
     devShell.${system} = pkgs.mkShell {
       buildInputs = with pkgs; [
         rsync
         zstd
+        git
       ];
     };
+    formatter.x86_64-linux = nixpkgs.legacyPackages.x86_64-linux.alejandra;
 
     nixosConfigurations.m1 = lib.nixosSystem {
       system = "aarch64-linux";
 
       modules = [
-      ({ pkgs, config, ... }: {
-
+        ({
+          pkgs,
+          config,
+          ...
+        }: {
           imports = [
             ./kboot-conf
             # "${nixpkgs}/nixos/modules/installer/sd-card/sd-image-aarch64-installer.nix"
             "${nixpkgs}/nixos/modules/installer/sd-card/sd-image-aarch64.nix"
-
           ];
 
           sdImage = {
             #compressImage = false;
             populateFirmwareCommands = let
               configTxt = pkgs.writeText "README" ''
-              Nothing to see here. This empty partition is here because I don't know how to turn its creation off.
+                Nothing to see here. This empty partition is here because I don't know how to turn its creation off.
               '';
             in ''
               cp ${configTxt} firmware/README
@@ -49,14 +49,14 @@
             populateRootCommands = ''
               ${config.boot.loader.kboot-conf.populateCmd} -c ${config.system.build.toplevel} -d ./files/kboot.conf
             '';
-            };
+          };
 
           #boot.loader.grub.enable = false;
           boot.loader.kboot-conf.enable = true;
           # Use kernel >6.6
           boot.kernelPackages = pkgs.linuxPackages_latest;
           # Stop ZFS breasking the build
-          boot.supportedFilesystems = lib.mkForce [ "btrfs" "cifs" "f2fs" "jfs" "ntfs" "reiserfs" "vfat" "xfs" ];
+          boot.supportedFilesystems = lib.mkForce ["btrfs" "cifs" "f2fs" "jfs" "ntfs" "reiserfs" "vfat" "xfs"];
 
           # I'm not completely sure if some of these could be omitted,
           # but want to make sure disk access works
@@ -69,28 +69,28 @@
           # Petitboot uses this port and baud rate on the boards serial port,
           # it's probably good to keep the options same for the running
           # kernel for serial console access to work well
-          boot.kernelParams = [ "console=ttyS2,1500000" ];       
+          boot.kernelParams = ["console=ttyS2,1500000"];
           hardware.deviceTree.name = "rockchip/rk3568-odroid-m1.dtb";
 
-          # Turn on flakes.
-          ##nix.package = pkgs.nixVersions.stable;
+          # Enable nix flakes
+          nix.package = pkgs.nixFlakes;
           nix.extraOptions = ''
             experimental-features = nix-command flakes
           '';
+          nix.nixPath = ["nixpkgs=${nixpkgs}"];
 
           # includes this flake in the live iso : "/etc/nixcfg"
           environment.etc.nixcfg.source =
             builtins.filterSource
-              (path: type:
-                baseNameOf path
-                != ".git"
-                && type != "symlink"
-                && !(pkgs.lib.hasSuffix ".qcow2" path)
-                && baseNameOf path != "secrets")
-              ../.;
+            (path: type:
+              baseNameOf path
+              != ".git"
+              && type != "symlink"
+              && !(pkgs.lib.hasSuffix ".qcow2" path)
+              && baseNameOf path != "secrets")
+            ../.;
 
-
-      services.openssh = {
+          services.openssh = {
             enable = true;
             settings.PermitRootLogin = "yes";
           };

kboot-conf/default.nix

@@ -1,8 +1,10 @@
-{ config, lib, pkgs, ... }:
-
-with lib;
-
-let
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+with lib; let
   cfg = config.boot.loader.kboot-conf;
 
   # The builder used to write during system activation
@@ -19,8 +21,7 @@ let
     path = with pkgs.buildPackages; [coreutils gnused gnugrep];
     inherit (pkgs.buildPackages) bash;
   };
-in
-{
+in {
   options = {
     boot.loader.kboot-conf = {
       enable = mkOption {
@@ -52,9 +53,10 @@ in
   };
   config = let
     args = "-g ${toString cfg.configurationLimit} -n ${config.hardware.deviceTree.name}";
-  in mkIf cfg.enable {
-    system.build.installBootLoader = lib.mkForce "${builder} ${args} -c";
-    system.boot.loader.id = "kboot-conf";
-    boot.loader.kboot-conf.populateCmd = "${populateBuilder} ${args}";
-  };
+  in
+    mkIf cfg.enable {
+      system.build.installBootLoader = lib.mkForce "${builder} ${args} -c";
+      system.boot.loader.id = "kboot-conf";
+      boot.loader.kboot-conf.populateCmd = "${populateBuilder} ${args}";
+    };
 }