entrypoint: just wire up celun for system computation and kernel

src/default.nix

@@ -1,4 +1,5 @@
 { nixpkgs      ? import ./lib/nixpkgs.nix
+, celun        ? import ./lib/celun.nix
 , lib          ? import (nixpkgs + "/lib")
 , pkgsFun      ? import nixpkgs
 , hostPlatform ? null         # if left `null` this will be set based on the ./platform/
@@ -22,6 +23,7 @@ let
         `nix-build -A` argument.
       '';
       inherit hostPlatform;
+      inherit celun;
       nixpkgsOnBuildForHost = pkgsFun
         (nixpkgsArgs
          // (lib.optionalAttrs (final.hostPlatform!=null) {
@@ -42,8 +44,10 @@ let
 
       iasl_20180531 = final.nixpkgsOnBuildForBuild.callPackage ./coreboot/iasl_20180531 { };
       coreboot = final.callPackage ./coreboot { };
+      device        = throw "platforms must override this attribute";
+      system        = final.callPackage ./system { inherit (final) celun device; };
       image         = final.callPackage ./image { };
-      kernel        = final.callPackage ./kernel { };
+      kernel        = (lib.traceVal final.system.build).kernel; #final.callPackage ./kernel { };
       initramfs     = final.callPackage ./initramfs {
         six-initrd = (six-initrd {
           inherit (final) lib;

src/lib/celun.nix

@@ -0,0 +1,7 @@
+let
+  commit = "f4e681b896aae165506b7963eb6ac6d6c032145f";
+  sha256 = "0mwqzinvacb8xd5wdv13l2b481n8xzm9dvh07ghs5pgifspi7skw";
+in builtins.fetchTarball {
+  url = "https://github.com/samueldr/celun/archive/${commit}.tar.gz";
+  inherit sha256;
+}

src/system/configuration.nix

@@ -0,0 +1,3 @@
+{ lib, ... }: {
+  wip.stage-1.compression = lib.mkDefault "xz";
+}

src/system/default.nix

@@ -0,0 +1,17 @@
+{ celun, device }@args:
+
+import (celun + "/lib/eval-with-configuration.nix") ((builtins.removeAttrs args [ "celun" ]) // {
+  inherit device;
+  verbose = true;
+  configuration = {
+    imports = [
+      ./configuration.nix
+      (
+        { lib, ... }:
+        {
+          # celun.system.automaticCross = lib.mkDefault true;
+        }
+      )
+    ];
+  };
+})