Rework confs a bit

configuration.nix

@@ -1,5 +1,6 @@
 {
   imports = [
     ./pinebook_pro.nix
+    ./pinebook_pro-installer.nix
   ];
 }

nixos/sd-image-aarch64.nix

@@ -14,25 +14,6 @@ in
   boot.loader.grub.enable = false;
   boot.loader.generic-extlinux-compatible.enable = true;
 
-  boot.consoleLogLevel = lib.mkDefault 7;
-
-  boot.kernelParams = [
-    "cma=32M"
-    #"console=ttyS0,115200n8" "console=ttyAMA0,115200n8" "console=tty0"
-
-    "console=ttyS2,1500000n8"
-    "earlycon=uart8250,mmio32,0xff1a0000" "earlyprintk"
-
-    # The last console parameter will be where the boot process will print
-    # its messages. Comment or move abot ttyS2 for better serial debugging.
-    "console=tty0"
-  ];
-
-  services.mingetty.serialSpeed = [ 1500000 115200 57600 38400 9600 ];
-
-  boot.initrd.availableKernelModules = [
-  ];
-
   sdImage = {
     populateRootCommands = ''
       mkdir -p ./files/boot

pinebook_pro-installer.nix

@@ -0,0 +1,22 @@
+{ config, lib, pkgs, ... }:
+
+# Things that are too opinionated for defaults.
+{
+  boot.kernelParams = [
+    "cma=32M"
+
+    "console=ttyS2,1500000n8"
+    "earlycon=uart8250,mmio32,0xff1a0000" "earlyprintk"
+
+    # The last console parameter will be where the boot process will print
+    # its messages. Comment or move above ttyS2 for better serial debugging.
+    "console=tty0"
+  ];
+
+  services.mingetty.serialSpeed = [ 1500000 115200 57600 38400 9600 ];
+
+  boot.initrd.availableKernelModules = [
+  ];
+
+  boot.consoleLogLevel = lib.mkDefault 7;
+}