add first draft

examples/buildroot_nix-build.nix

@@ -0,0 +1,17 @@
+{ pkgs ? import <nixpkgs> {}}:
+let
+
+buildroot = pkgs.callPackage ../buildroot.nix {};
+
+in
+
+pkgs.stdenv.mkDerivation rec {
+  name = "makeBuildRoot";
+  phases = "installPhase";
+  installPhase = ''
+    mkdir -p $out/bin
+    cp ${buildroot.makeBuildRoot.command}/bin/makeBuildRoot $out/bin/makeBuildRoot
+  '';
+}
+
+

examples/buildroot_nix-docker.nix

@@ -0,0 +1,30 @@
+{ pkgs ? import <nixpkgs> {}}:
+let
+
+buildroot = pkgs.callPackage ../buildroot.nix {};
+
+buildrootBaseImage = pkgs.dockerTools.pullImage {
+  imageName = "buildroot/base";
+  imageDigest = "sha256:d81f16ae5635f1548fe3a9dafef5f41932fa5a209368cb7d74fa9a8dea2b2b07";
+  finalImageName = "buildroot/base";
+  finalImageTag = "20210922.2200";
+  sha256 = "0mqjy3zq2v6rrhizgb9nvhczl87lcfphq9601wcprdika2jz7qh8";
+};
+
+in
+
+pkgs.dockerTools.buildImage {
+  name = "buildroot-nix";
+  tag = "latest";
+
+  fromImage = buildrootBaseImage;
+
+  contents = [
+      buildroot.package
+      buildroot.makeBuildRoot.command
+      buildroot.makeBuildRoot.scriptPaths     
+  ];
+ 
+  config.Cmd = [ "${pkgs.bash}/bin/bash" ];
+}
+

examples/buildroot_nix-shell.nix

@@ -0,0 +1,25 @@
+{ pkgs ? import <nixpkgs> {}}:
+let
+
+buildroot = pkgs.callPackage ../buildroot.nix {};
+
+in
+
+pkgs.stdenv.mkDerivation {
+  name = "buildroot-shell";
+    buildInputs = buildroot.makeBuildRoot.paths ++ [
+      buildroot.package
+      buildroot.makeBuildRoot.command
+    ];
+  hardeningDisable = [ "all" ];
+  shellHook = ''
+        alias make='makeBuildRoot'
+  ''; 
+  phases = [ "nobuildPhase" ];
+  nobuildPhase = ''
+    echo
+    echo "This derivation is not meant to be built, aborting";
+    echo
+    exit 1
+  '';  
+}