diff --git a/docker/mjolnir/start.sh b/docker/mjolnir/start.sh
new file mode 100644
index 0000000..7dc9afb
--- /dev/null
+++ b/docker/mjolnir/start.sh
@@ -0,0 +1,33 @@
+#!/bin/bash
+
+# Default environment variables with their default values
+CONFIG_PATH="/etc/mjolnir/config.yml"
+DEFAULT_CONFIG_PATH="/etc/mjolnir/default.yaml"
+HOME_SERVER_URL="${HOME_SERVER_URL:-https://matrix.org}"
+RAW_HOME_SERVER_URL="${RAW_HOME_SERVER_URL:-https://matrix.org}"
+ACCESS_TOKEN="${ACCESS_TOKEN:-YOUR_TOKEN_HERE}"
+PANTALAIMON_USE="${PANTALAIMON_USE:-false}"
+PANTALAIMON_USERNAME="${PANTALAIMON_USERNAME:-mjolnir}"
+PANTALAIMON_PASSWORD="${PANTALAIMON_PASSWORD:-your_password}"
+SENTRY_DSN="${SENTRY_DSN:-}"
+SENTRY_TRACES_SAMPLE_RATE="${SENTRY_TRACES_SAMPLE_RATE:-0.5}"
+WEB_LISTEN_ADDRESS="${WEB_LISTEN_ADDRESS:-0.0.0.0}"
+
+# Check if the config file exists, if not, configure it
+if [ ! -f "$CONFIG_PATH" ]; then
+    cp $DEFAULT_CONFIG_PATH $CONFIG_PATH
+    
+    # Replace values in the config file
+    sed -i "s|homeserverUrl:.*|homeserverUrl: \"$HOME_SERVER_URL\"|g" $CONFIG_PATH
+    sed -i "s|rawHomeserverUrl:.*|rawHomeserverUrl: \"$RAW_HOME_SERVER_URL\"|g" $CONFIG_PATH
+    sed -i "s|accessToken:.*|accessToken: \"$ACCESS_TOKEN\"|g" $CONFIG_PATH
+    sed -i "s|use:.*|use: $PANTALAIMON_USE|g" $CONFIG_PATH
+    sed -i "s|username:.*|username: \"$PANTALAIMON_USERNAME\"|g" $CONFIG_PATH
+    sed -i "s|password:.*|password: \"$PANTALAIMON_PASSWORD\"|g" $CONFIG_PATH
+    sed -i "s|# dsn:.*|dsn: \"$SENTRY_DSN\"|g" $CONFIG_PATH
+    sed -i "s|# tracesSampleRate:.*|tracesSampleRate: $SENTRY_TRACES_SAMPLE_RATE|g" $CONFIG_PATH
+    sed -i "s|address:.*|address: \"$WEB_LISTEN_ADDRESS\"|g" $CONFIG_PATH
+fi
+
+# Start Mjolnir with the configured settings
+bot --mjolnir-config $CONFIG_PATH