diff --git a/build.sh b/build.sh
index 1c9d4a9..716db0a 100755
--- a/build.sh
+++ b/build.sh
@@ -15,68 +15,57 @@ ARTWORK="$PWD/artwork"
 SRC="$PWD/src"
 DL="$PWD/dl"
 PACKAGE="$PWD/package"
+PYTHON_FWORK="$PACKAGE/Frameworks/Python.framework"
+PYTHON_FWORK_VERSION="$PYTHON_FWORK/Versions/Current"
 
 rm -rf "$PACKAGE"
 
-mkdir -p "$DL" "$PACKAGE"
-mkdir -p "$PACKAGE/bin"
+mkdir -p "$DL" "$PACKAGE/bin" "$PACKAGE/boot"
 
 echo "Updating submodules..."
-
 git submodule update --init --recursive
 
 echo "Downloading installer components..."
-
-cd "$DL"
-
-wget -Nc "$PYTHON_URI"
+wget -P "$DL" -Nc "$PYTHON_URI"
 
 echo "Building m1n1..."
-
 make -C "$M1N1" RELEASE=1 -j4
 
 echo "Building u-boot..."
-
 make -C "$UBOOT" CROSS_COMPILE=aarch64-linux-gnu- -j4  apple_m1_defconfig all
 
 echo "Copying files..."
-
 cp -r "$SRC"/* "$PACKAGE/"
 cp "$ARTWORK/logos/icns/AsahiLinux_logomark.icns" "$PACKAGE/logo.icns"
-mkdir -p "$PACKAGE/boot"
 cp "$M1N1/build/m1n1.bin" "$PACKAGE/boot"
 cat "$M1N1/build/m1n1.bin" \
     "$UBOOT/arch/arm/dts/"t[86]*.dtb \
     "$UBOOT/u-boot-nodtb.bin" \
     > "$PACKAGE/boot/m1n1-uboot.bin"
 
-echo "Extracting Python framework..."
-
-mkdir -p "$PACKAGE/Frameworks/Python.framework"
 
+echo "Extracting Python framework..."
+mkdir -p "$PYTHON_FWORK"
 7z x -so "$DL/$PYTHON_PKG" Python_Framework.pkg/Payload | zcat | \
-    cpio -i -D "$PACKAGE/Frameworks/Python.framework"
+    cpio -i -D "$PYTHON_FWORK"
 
-echo "Slimming down Python..."
 
-cd "$PACKAGE/Frameworks/Python.framework/Versions/Current"
+echo "Slimming down Python..."
+(
+    cd "$PYTHON_FWORK_VERSION"
+    rm -rf include share
+    cd lib
+    rm -rf -- tdb* tk* Tk* libtk* *tcl*
+    cd python3.*
+    rm -rf test ensurepip idlelib
+    cd lib-dynload
+    rm -f _test* _tkinter*
+)
 
-rm -rf include share
-cd lib
-rm -rf -- tdb* tk* Tk* libtk* *tcl*
-cd python3.*
-rm -rf test ensurepip idlelib
-cd lib-dynload
-rm -f _test* _tkinter*
-    
 echo "Copying certificates..."
-
 certs="$(python3 -c 'import certifi; print(certifi.where())')"
-cp "$certs" "$PACKAGE/Frameworks/Python.framework/Versions/Current/etc/openssl/cert.pem"
+cp "$certs" "$PYTHON_FWORK_VERSION/etc/openssl/cert.pem"
 
 echo "Packaging installer..."
-
 cd "$PACKAGE"
-
 tar czf ../installer.tar.gz .
-