diff --git a/src/build.sh b/src/build.sh
index 9ff7259..262259a 100644
--- a/src/build.sh
+++ b/src/build.sh
@@ -1,11 +1,15 @@
 #!/usr/bin/env nix-shell
 #! nix-shell -i bash
 #! nix-shell -p bash curl gcc zlib libffi icu77 python313 rustc ccache ninja cmake libllvm cargo rust-cbindgen pkg-config
-SUBVERSION="140.4.0"
-VERSION="${SUBVERSION}esr"
-DOWNLOAD="https://ftp.mozilla.org/pub/firefox/releases/$VERSION/source/firefox-$VERSION.source.tar.xz"
-BUILDPATH=$(realpath .)
-mkdir bin
+
+# CONFIGURATION OPTIONS
+MAJORVERSION="140" # MAJOR firefox esr version
+BUILDPATH=$(realpath .) # Where to output build fragments
+OUTPUT="/var/www/$VERSION/" # Where to place built and zipped hashes and all that (ex. for file hosting)
+
+# Ensure necessary directories exist
+mkdir $BUILDPATH/bin
+mkdir $OUTPUT
 
 #debug stuff
 echo Version: