diff --git a/README.md b/README.md
index 0b2795a..4b27fe1 100644
--- a/README.md
+++ b/README.md
@@ -11,11 +11,6 @@ You will have to use Arch or Arch-Based distros to build this ISO File.
 * `pacman-contrib`
 * `archiso`
 
-Install With - `sudo pacman -Syu pacman-contrib archiso`<br />
-(Syu To make sure everything else is up to date and the repos are synchronized)
 ### Run the Command
-Go to the project folder, open a terminal and Type `./build_iso.sh`<br />
-Or Open Visual Studio code and execute the script from there.
-* If you get an error about `/tmp/<something>` running out of space, reboot (to clear tmpfs), then edit the `WORKDIR=...` line to a regular dir name.
-    * This (could) happen because the script is written to make a temp dir in `/tmp`, which is a virtual FS that lives in RAM.
-    * If it happens to many people, we can just add a commandline arg to change `WORKDIR`
+* `./build_iso.sh`
+* If you get an error about `/tmp/<something>` running out of space, reboot (to clear tmpfs), then re-run with a dir to use as temp (e.g. `./build_iso.sh FOOBAR`)
diff --git a/build_iso.sh b/build_iso.sh
index 4e7057c..c7ef08a 100755
--- a/build_iso.sh
+++ b/build_iso.sh
@@ -1,6 +1,14 @@
 rm -fv *.iso
 
-WORKDIR=$(mktemp -d)
+if [[ "$1" == "" ]]; then
+    WORKDIR=$(mktemp -d)
+else
+    WORKDIR="$1"
+    if [[ ! -d "$WORKDIR" ]]; then
+        mkdir -p "$WORKDIR"
+    fi
+fi
+
 # idk if this would've happened automatically?
 cp crystal/pacman.conf crystal/airootfs/etc/.
 cp crystal/packages.x86_64 crystal/airootfs/etc/packages.x86_64