add current state I use of

https://github.com/nix-community/nixos-apple-silicon

zeta/apple-silicon-support/modules/boot-m1n1/default.nix

@@ -0,0 +1,55 @@
+{ config, pkgs, lib, ... }:
+let
+  pkgs' = config.hardware.asahi.pkgs;
+
+  bootM1n1 = pkgs'.m1n1.override {
+    isRelease = true;
+    withTools = false;
+    customLogo = config.boot.m1n1CustomLogo;
+  };
+
+  bootUBoot = pkgs'.uboot-asahi.override {
+    m1n1 = bootM1n1;
+  };
+
+  bootFiles = {
+    "m1n1/boot.bin" = pkgs.runCommand "boot.bin" {} ''
+      cat ${bootM1n1}/build/m1n1.bin > $out
+      cat ${config.boot.kernelPackages.kernel}/dtbs/apple/*.dtb >> $out
+      cat ${bootUBoot}/u-boot-nodtb.bin.gz >> $out
+      if [ -n "${config.boot.m1n1ExtraOptions}" ]; then
+        echo '${config.boot.m1n1ExtraOptions}' >> $out
+      fi
+    '';
+  };
+in {
+  config = lib.mkIf config.hardware.asahi.enable {
+    # install m1n1 with the boot loader
+    boot.loader.grub.extraFiles = bootFiles;
+    boot.loader.systemd-boot.extraFiles = bootFiles;
+
+    # ensure the installer has m1n1 in the image
+    system.extraDependencies = lib.mkForce [ bootM1n1 bootUBoot ];
+    system.build.m1n1 = bootFiles."m1n1/boot.bin";
+  };
+
+  options.boot = {
+    m1n1ExtraOptions = lib.mkOption {
+      type = lib.types.str;
+      default = "";
+      description = ''
+        Append extra options to the m1n1 boot binary. Might be useful for fixing
+        display problems on Mac minis.
+        https://github.com/AsahiLinux/m1n1/issues/159
+      '';
+    };
+
+    m1n1CustomLogo = lib.mkOption {
+      type = lib.types.nullOr lib.types.path;
+      default = null;
+      description = ''
+        Custom logo to build into m1n1. The path must point to a 256x256 PNG.
+      '';
+    };
+  };
+}