diff --git a/THOUGHTS.txt b/THOUGHTS.txt
index 8a0d6ff..8111aba 100644
--- a/THOUGHTS.txt
+++ b/THOUGHTS.txt
@@ -501,3 +501,11 @@ For better developer experience, I am thinking that either (1)
 swap tasks 2 and 3 (writable filesystem before module system)
 or (2) add NBD support so I can iterate on a real device without
 full rebuilds every time
+
+
+Fri Feb 10 06:18:25 PM GMT 2023
+
+did the overlay->module thing
+
+Need to fix all the configuration around PHRAM, I can't see how it
+would ever ork
diff --git a/default.nix b/default.nix
index 025b1d0..a606104 100644
--- a/default.nix
+++ b/default.nix
@@ -45,7 +45,7 @@ let
     };
     uimage = (callPackage ./kernel/uimage.nix {}) {
       commandLine = concatStringsSep " " config.boot.commandLine;
-      inherit (device.boot) loadAddress entryPoint;
+      inherit (config.device) loadAddress entryPoint;
       inherit kernel;
       inherit dtb;
     };
@@ -80,8 +80,9 @@ let
       ln -s ${manifest} manifest
       ln -s ${kernel.headers} build
     '' +
-    (if device ? boot then ''
-      ln -s ${uimage} uimage
+    (if config.device.loadAddress != null  then
+      ''
+      ln -s {uimage} uimage
       ${if phram then "ln -s ${boot-scr} boot.scr" else ""}
       ln -s ${boot-scr} flash.scr
     '' else ""));
diff --git a/devices/gl-ar750/default.nix b/devices/gl-ar750/default.nix
index 2af5dbe..a7982f8 100644
--- a/devices/gl-ar750/default.nix
+++ b/devices/gl-ar750/default.nix
@@ -34,8 +34,8 @@
         hash = "sha256-YYi4gkpLjbOK7bM2MGQjAyEBuXJ9JNXoz/JEmYf8xE8=";
       };
     in {
-      device.defaultOutput = "directory";
-      device.boot = {
+      device = {
+        defaultOutput = "directory";
         loadAddress = "0x80060000";
         entryPoint  = "0x80060000";
       };
diff --git a/devices/gl-mt300a/default.nix b/devices/gl-mt300a/default.nix
index 5e49ef7..6172cef 100644
--- a/devices/gl-mt300a/default.nix
+++ b/devices/gl-mt300a/default.nix
@@ -23,10 +23,8 @@
     in {
       device = {
         defaultOutput = "directory";
-        boot = {
-          loadAddress = "0x80000000";
-          entryPoint  = "0x80000000";
-        };
+        loadAddress = "0x80000000";
+        entryPoint  = "0x80000000";
       };
 
       kernel = {
diff --git a/devices/gl-mt300n-v2/default.nix b/devices/gl-mt300n-v2/default.nix
index fb97e30..ef19e1c 100644
--- a/devices/gl-mt300n-v2/default.nix
+++ b/devices/gl-mt300n-v2/default.nix
@@ -23,10 +23,8 @@
     in {
       device = {
         defaultOutput = "directory";
-        boot = {
-          loadAddress = "0x80000000";
-          entryPoint  = "0x80000000";
-        };
+        loadAddress = "0x80000000";
+        entryPoint  = "0x80000000";
       };
 
       kernel = {
diff --git a/modules/base.nix b/modules/base.nix
index 9aa6d23..9c16df6 100644
--- a/modules/base.nix
+++ b/modules/base.nix
@@ -29,28 +29,28 @@ in {
         default = "true";
         type = types.lines;
       } ;
-      dts = mkOption { type = types.string; };
+      dts = mkOption { type = types.path; };
       config = mkOption {
         # mostly the values are y n or m, but sometimes
         # other strings are also used
         type = types.attrsOf types.nonEmptyStr;
       };
     };
-    boot.commandLine = mkOption {
-      type = types.listOf types.nonEmptyStr;
-    };
     groups =  mkOption {
       type = types.attrsOf types.anything;
     };
     users =  mkOption {
       type = types.attrsOf types.anything;
     };
-    device = {
-      defaultOutput = mkOption {
-        type = types.nonEmptyStr;
-      };
-      boot = mkOption { type = types.any; };
+    boot.commandLine = mkOption {
+      type = types.listOf types.nonEmptyStr;
+      default = [];
     };
+    device.defaultOutput = mkOption {
+      type = types.nonEmptyStr;
+    };
+    device.loadAddress = mkOption { default = null; };
+    device.entryPoint = mkOption { };
   };
   config = {
     defaultProfile.packages = with pkgs;