Added nix package that build site from org mode

package.nix

@@ -0,0 +1,46 @@
+{
+  stdenvNoCC,
+  writeText,
+  emacs,
+}: let
+  src = ./.;
+  buildScript = writeText "build-site.el" ''
+        ;; Load the publishing system
+        (require 'ox-publish)
+        ;; Define the publishing project
+        (setq org-publish-project-alist
+              (list
+               (list "kylekrein's website"
+                     :recursive t
+                     :base-directory "${src}"
+                     :publishing-directory "./public"
+                     :publishing-function 'org-html-publish-to-html
+    		 :with-author nil           ;; Don't include author name
+                 :with-creator t            ;; Include Emacs and Org versions in footer
+                 :with-toc nil                ;; Include a table of contents
+                 :section-numbers nil       ;; Don't include section numbers
+                 :time-stamp-file nil)))    ;; Don't include time stamp in file
+
+    ;; Customize the HTML output
+    (setq org-html-validation-link nil            ;; Don't show validation link
+          org-html-head-include-scripts nil       ;; Use our own scripts
+          org-html-head-include-default-style nil ;; Use our own styles
+          org-html-head "<link rel=\"stylesheet\" href=\"${./style.css}\" />")
+
+        ;; Generate the site output
+        (org-publish-all t)
+        (message "Build complete!")
+  '';
+in
+  stdenvNoCC.mkDerivation {
+    name = "KyleKrein's Website";
+    inherit src;
+    buildPhase = ''
+      HOME=$(pwd) ${emacs}/bin/emacs -Q --script ${buildScript}
+    '';
+    installPhase = ''
+      mkdir -p $out
+      cd public
+      cp -r . $out/
+    '';
+  }