diff --git a/Dockerfile b/Dockerfile
index a590745..b68d80b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -16,7 +16,7 @@ RUN apt-get update && \
     apt-get clean && \
     rm -rf /var/lib/apt/lists/*
 
-### Install Forge
+### Install Forge to /opt/forge, placing the start file at /opt/forge/forge.sh
 WORKDIR /tmp/forge-download
 RUN apt-get update && apt-get install -y jq curl && \
     SNAPSHOT_URL=$(curl -s https://api.github.com/repos/Card-Forge/forge/releases/tags/daily-snapshots \
@@ -29,7 +29,7 @@ RUN apt-get update && apt-get install -y jq curl && \
     apt-get autoremove -y
 
 ### Add the startup script
-COPY custom_startup $STARTUPDIR/custom_startup.sh
+COPY custom_startup.sh $STARTUPDIR/custom_startup.sh
 RUN chmod +x $STARTUPDIR/custom_startup.sh
 RUN chmod 755 $STARTUPDIR/custom_startup.sh
 
diff --git a/custom_startup b/custom_startup
deleted file mode 100644
index c1fc617..0000000
--- a/custom_startup
+++ /dev/null
@@ -1,20 +0,0 @@
-#!/bin/bash
-set -e
-
-export JAVA_HOME=/usr/lib/jvm/java-17-openjdk-amd64
-export PATH=$JAVA_HOME/bin:$PATH
-
-# Optional: maximize Forge window
-if [[ -x $STARTUPDIR/maximize_window.sh ]]; then
-  bash $STARTUPDIR/maximize_window.sh &
-fi
-
-# DEBUG: Create a file on desktop to indicate the script is running
-if [[ -d $HOME/Desktop ]]; then
-  echo "Forge startup script is running" > $HOME/Desktop/forge_startup.log
-else
-  echo "Forge startup script is running" > $HOME/forge_startup.log
-fi
-
-# Run Forge and wait for it to close
-exec /opt/forge/start.sh
diff --git a/custom_startup.sh b/custom_startup.sh
new file mode 100644
index 0000000..426e328
--- /dev/null
+++ b/custom_startup.sh
@@ -0,0 +1,13 @@
+#!/bin/bash
+set -e
+
+export JAVA_HOME=/usr/lib/jvm/java-17-openjdk-amd64
+export PATH=$JAVA_HOME/bin:$PATH
+
+# Optional: maximize Forge window
+if [[ -x $STARTUPDIR/maximize_window.sh ]]; then
+  bash $STARTUPDIR/maximize_window.sh &
+fi
+
+# Run Forge and wait for it to close
+exec /opt/forge/forge.sh