A lot :)

bin/entrypoint

@@ -1,20 +1,23 @@
-#!/bin/bash
+#!/bin/ash
+
 set -e
 
-echo "1: ${1}"
-echo "2: ${2}"
 if [ -f tmp/pids/server.pid ]; then
   rm tmp/pids/server.pid
 fi
 
 # Make the if statement match any invocation of the "rails server" command
 if [[ "${1}" == *rails ]] && ([ "${2}" == "server" ] || [ "${2}" == "s" ]); then
+  echo "+ preparing database..."
+  ./bin/rails db:prepare
+  echo "- preparing database done."
 
-  if [ ! -f /app/no_migrate ] && [ ! -v NO_MIGRATE ]; then
-    echo "+ preparing database..."
-    ./bin/rails db:prepare
-    echo "- preparing database done."
+  if [ -n "$ASSETS_PATH" ]; then
+    echo "+ copying assets..."
+    cp -nr public/* $ASSETS_PATH
+    echo "- copying assets done."
   fi
+  
 fi
 
 # Execute the given or default command: