diff --git a/1-rookie/ZGoodiesShop/.gitignore b/1-rookie/ZGoodiesShop/.gitignore
new file mode 100644
index 0000000..549e00a
--- /dev/null
+++ b/1-rookie/ZGoodiesShop/.gitignore
@@ -0,0 +1,33 @@
+HELP.md
+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/
diff --git a/1-rookie/ZGoodiesShop/.mvn/wrapper/maven-wrapper.jar b/1-rookie/ZGoodiesShop/.mvn/wrapper/maven-wrapper.jar
new file mode 100644
index 0000000..cb28b0e
Binary files /dev/null and b/1-rookie/ZGoodiesShop/.mvn/wrapper/maven-wrapper.jar differ
diff --git a/1-rookie/ZGoodiesShop/.mvn/wrapper/maven-wrapper.properties b/1-rookie/ZGoodiesShop/.mvn/wrapper/maven-wrapper.properties
new file mode 100644
index 0000000..5f0536e
--- /dev/null
+++ b/1-rookie/ZGoodiesShop/.mvn/wrapper/maven-wrapper.properties
@@ -0,0 +1,2 @@
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.5/apache-maven-3.9.5-bin.zip
+wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.2.0/maven-wrapper-3.2.0.jar
diff --git a/1-rookie/ZGoodiesShop/README.md b/1-rookie/ZGoodiesShop/README.md
new file mode 100644
index 0000000..1253b51
--- /dev/null
+++ b/1-rookie/ZGoodiesShop/README.md
@@ -0,0 +1,67 @@
+## Exercise
+
+1. Design a small REST API with GET and POST for orders
+
+2. Return a Customer fully populated with Orders → Items
+
+Complete the TODOs in order (lowest number first).
+You can use Lombok and Spring Boot 3 / Spring Data JPA.
+No DB scripts needed (use H2).
+Bonus points for validation & error handling.
+
+## What we’re evaluating
+
+[1–3] Entities & mappings: Correct One-to-Many with @JoinColumn, cascade, and orphan removal.
+
+[4–5] Repositories: Knows Spring Data basics.
+
+[6] Seeding: Can assemble nested aggregates and persist.
+
+[7–8] REST basics: Proper GET and POST, DTO usage, 201 Created with Location.
+
+[9] Nested fetch: Returns a Customer with Orders → Items (unidirectional makes JSON straightforward).
+
+## Read H2 data
+
+Open your browser at 👉 http://localhost:8080/h2-console
+
+In the login form:
+
+JDBC URL: `jdbc:h2:mem:testdb` (same as spring.datasource.url)
+
+User Name: `sa`
+
+Password: (empty)
+
+Click Connect → you’ll see your tables (`ZCUSTOMER`, `ZORDER`, `ZITEM`) and can run SQL queries.
+
+## Curl request
+
+### find all orders
+
+```
+curl --request GET \
+  --url http://localhost:8080/api/v1/orders
+```
+
+### find customer 1
+
+```
+curl --request GET \
+  --url http://localhost:8080/api/v1/customers/1
+```
+
+### add order
+
+```
+curl --request POST \
+  --url http://localhost:8080/api/v1/orders \
+  --header 'content-type: application/json' \
+  --data '{
+  "name": "office pack",
+  "items": [
+    "Pen",
+    "Notebook"
+  ]
+}'
+```
diff --git a/1-rookie/ZGoodiesShop/mvnw b/1-rookie/ZGoodiesShop/mvnw
new file mode 100644
index 0000000..66df285
--- /dev/null
+++ b/1-rookie/ZGoodiesShop/mvnw
@@ -0,0 +1,308 @@
+#!/bin/sh
+# ----------------------------------------------------------------------------
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#    https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+# ----------------------------------------------------------------------------
+
+# ----------------------------------------------------------------------------
+# Apache Maven Wrapper startup batch script, version 3.2.0
+#
+# Required ENV vars:
+# ------------------
+#   JAVA_HOME - location of a JDK home dir
+#
+# Optional ENV vars
+# -----------------
+#   MAVEN_OPTS - parameters passed to the Java VM when running Maven
+#     e.g. to debug Maven itself, use
+#       set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
+#   MAVEN_SKIP_RC - flag to disable loading of mavenrc files
+# ----------------------------------------------------------------------------
+
+if [ -z "$MAVEN_SKIP_RC" ] ; then
+
+  if [ -f /usr/local/etc/mavenrc ] ; then
+    . /usr/local/etc/mavenrc
+  fi
+
+  if [ -f /etc/mavenrc ] ; then
+    . /etc/mavenrc
+  fi
+
+  if [ -f "$HOME/.mavenrc" ] ; then
+    . "$HOME/.mavenrc"
+  fi
+
+fi
+
+# OS specific support.  $var _must_ be set to either true or false.
+cygwin=false;
+darwin=false;
+mingw=false
+case "$(uname)" in
+  CYGWIN*) cygwin=true ;;
+  MINGW*) mingw=true;;
+  Darwin*) darwin=true
+    # Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home
+    # See https://developer.apple.com/library/mac/qa/qa1170/_index.html
+    if [ -z "$JAVA_HOME" ]; then
+      if [ -x "/usr/libexec/java_home" ]; then
+        JAVA_HOME="$(/usr/libexec/java_home)"; export JAVA_HOME
+      else
+        JAVA_HOME="/Library/Java/Home"; export JAVA_HOME
+      fi
+    fi
+    ;;
+esac
+
+if [ -z "$JAVA_HOME" ] ; then
+  if [ -r /etc/gentoo-release ] ; then
+    JAVA_HOME=$(java-config --jre-home)
+  fi
+fi
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched
+if $cygwin ; then
+  [ -n "$JAVA_HOME" ] &&
+    JAVA_HOME=$(cygpath --unix "$JAVA_HOME")
+  [ -n "$CLASSPATH" ] &&
+    CLASSPATH=$(cygpath --path --unix "$CLASSPATH")
+fi
+
+# For Mingw, ensure paths are in UNIX format before anything is touched
+if $mingw ; then
+  [ -n "$JAVA_HOME" ] && [ -d "$JAVA_HOME" ] &&
+    JAVA_HOME="$(cd "$JAVA_HOME" || (echo "cannot cd into $JAVA_HOME."; exit 1); pwd)"
+fi
+
+if [ -z "$JAVA_HOME" ]; then
+  javaExecutable="$(which javac)"
+  if [ -n "$javaExecutable" ] && ! [ "$(expr "\"$javaExecutable\"" : '\([^ ]*\)')" = "no" ]; then
+    # readlink(1) is not available as standard on Solaris 10.
+    readLink=$(which readlink)
+    if [ ! "$(expr "$readLink" : '\([^ ]*\)')" = "no" ]; then
+      if $darwin ; then
+        javaHome="$(dirname "\"$javaExecutable\"")"
+        javaExecutable="$(cd "\"$javaHome\"" && pwd -P)/javac"
+      else
+        javaExecutable="$(readlink -f "\"$javaExecutable\"")"
+      fi
+      javaHome="$(dirname "\"$javaExecutable\"")"
+      javaHome=$(expr "$javaHome" : '\(.*\)/bin')
+      JAVA_HOME="$javaHome"
+      export JAVA_HOME
+    fi
+  fi
+fi
+
+if [ -z "$JAVACMD" ] ; then
+  if [ -n "$JAVA_HOME"  ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+      # IBM's JDK on AIX uses strange locations for the executables
+      JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+      JAVACMD="$JAVA_HOME/bin/java"
+    fi
+  else
+    JAVACMD="$(\unset -f command 2>/dev/null; \command -v java)"
+  fi
+fi
+
+if [ ! -x "$JAVACMD" ] ; then
+  echo "Error: JAVA_HOME is not defined correctly." >&2
+  echo "  We cannot execute $JAVACMD" >&2
+  exit 1
+fi
+
+if [ -z "$JAVA_HOME" ] ; then
+  echo "Warning: JAVA_HOME environment variable is not set."
+fi
+
+# traverses directory structure from process work directory to filesystem root
+# first directory with .mvn subdirectory is considered project base directory
+find_maven_basedir() {
+  if [ -z "$1" ]
+  then
+    echo "Path not specified to find_maven_basedir"
+    return 1
+  fi
+
+  basedir="$1"
+  wdir="$1"
+  while [ "$wdir" != '/' ] ; do
+    if [ -d "$wdir"/.mvn ] ; then
+      basedir=$wdir
+      break
+    fi
+    # workaround for JBEAP-8937 (on Solaris 10/Sparc)
+    if [ -d "${wdir}" ]; then
+      wdir=$(cd "$wdir/.." || exit 1; pwd)
+    fi
+    # end of workaround
+  done
+  printf '%s' "$(cd "$basedir" || exit 1; pwd)"
+}
+
+# concatenates all lines of a file
+concat_lines() {
+  if [ -f "$1" ]; then
+    # Remove \r in case we run on Windows within Git Bash
+    # and check out the repository with auto CRLF management
+    # enabled. Otherwise, we may read lines that are delimited with
+    # \r\n and produce $'-Xarg\r' rather than -Xarg due to word
+    # splitting rules.
+    tr -s '\r\n' ' ' < "$1"
+  fi
+}
+
+log() {
+  if [ "$MVNW_VERBOSE" = true ]; then
+    printf '%s\n' "$1"
+  fi
+}
+
+BASE_DIR=$(find_maven_basedir "$(dirname "$0")")
+if [ -z "$BASE_DIR" ]; then
+  exit 1;
+fi
+
+MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"}; export MAVEN_PROJECTBASEDIR
+log "$MAVEN_PROJECTBASEDIR"
+
+##########################################################################################
+# Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
+# This allows using the maven wrapper in projects that prohibit checking in binary data.
+##########################################################################################
+wrapperJarPath="$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar"
+if [ -r "$wrapperJarPath" ]; then
+    log "Found $wrapperJarPath"
+else
+    log "Couldn't find $wrapperJarPath, downloading it ..."
+
+    if [ -n "$MVNW_REPOURL" ]; then
+      wrapperUrl="$MVNW_REPOURL/org/apache/maven/wrapper/maven-wrapper/3.2.0/maven-wrapper-3.2.0.jar"
+    else
+      wrapperUrl="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.2.0/maven-wrapper-3.2.0.jar"
+    fi
+    while IFS="=" read -r key value; do
+      # Remove '\r' from value to allow usage on windows as IFS does not consider '\r' as a separator ( considers space, tab, new line ('\n'), and custom '=' )
+      safeValue=$(echo "$value" | tr -d '\r')
+      case "$key" in (wrapperUrl) wrapperUrl="$safeValue"; break ;;
+      esac
+    done < "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.properties"
+    log "Downloading from: $wrapperUrl"
+
+    if $cygwin; then
+      wrapperJarPath=$(cygpath --path --windows "$wrapperJarPath")
+    fi
+
+    if command -v wget > /dev/null; then
+        log "Found wget ... using wget"
+        [ "$MVNW_VERBOSE" = true ] && QUIET="" || QUIET="--quiet"
+        if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
+            wget $QUIET "$wrapperUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath"
+        else
+            wget $QUIET --http-user="$MVNW_USERNAME" --http-password="$MVNW_PASSWORD" "$wrapperUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath"
+        fi
+    elif command -v curl > /dev/null; then
+        log "Found curl ... using curl"
+        [ "$MVNW_VERBOSE" = true ] && QUIET="" || QUIET="--silent"
+        if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
+            curl $QUIET -o "$wrapperJarPath" "$wrapperUrl" -f -L || rm -f "$wrapperJarPath"
+        else
+            curl $QUIET --user "$MVNW_USERNAME:$MVNW_PASSWORD" -o "$wrapperJarPath" "$wrapperUrl" -f -L || rm -f "$wrapperJarPath"
+        fi
+    else
+        log "Falling back to using Java to download"
+        javaSource="$MAVEN_PROJECTBASEDIR/.mvn/wrapper/MavenWrapperDownloader.java"
+        javaClass="$MAVEN_PROJECTBASEDIR/.mvn/wrapper/MavenWrapperDownloader.class"
+        # For Cygwin, switch paths to Windows format before running javac
+        if $cygwin; then
+          javaSource=$(cygpath --path --windows "$javaSource")
+          javaClass=$(cygpath --path --windows "$javaClass")
+        fi
+        if [ -e "$javaSource" ]; then
+            if [ ! -e "$javaClass" ]; then
+                log " - Compiling MavenWrapperDownloader.java ..."
+                ("$JAVA_HOME/bin/javac" "$javaSource")
+            fi
+            if [ -e "$javaClass" ]; then
+                log " - Running MavenWrapperDownloader.java ..."
+                ("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$wrapperUrl" "$wrapperJarPath") || rm -f "$wrapperJarPath"
+            fi
+        fi
+    fi
+fi
+##########################################################################################
+# End of extension
+##########################################################################################
+
+# If specified, validate the SHA-256 sum of the Maven wrapper jar file
+wrapperSha256Sum=""
+while IFS="=" read -r key value; do
+  case "$key" in (wrapperSha256Sum) wrapperSha256Sum=$value; break ;;
+  esac
+done < "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.properties"
+if [ -n "$wrapperSha256Sum" ]; then
+  wrapperSha256Result=false
+  if command -v sha256sum > /dev/null; then
+    if echo "$wrapperSha256Sum  $wrapperJarPath" | sha256sum -c > /dev/null 2>&1; then
+      wrapperSha256Result=true
+    fi
+  elif command -v shasum > /dev/null; then
+    if echo "$wrapperSha256Sum  $wrapperJarPath" | shasum -a 256 -c > /dev/null 2>&1; then
+      wrapperSha256Result=true
+    fi
+  else
+    echo "Checksum validation was requested but neither 'sha256sum' or 'shasum' are available."
+    echo "Please install either command, or disable validation by removing 'wrapperSha256Sum' from your maven-wrapper.properties."
+    exit 1
+  fi
+  if [ $wrapperSha256Result = false ]; then
+    echo "Error: Failed to validate Maven wrapper SHA-256, your Maven wrapper might be compromised." >&2
+    echo "Investigate or delete $wrapperJarPath to attempt a clean download." >&2
+    echo "If you updated your Maven version, you need to update the specified wrapperSha256Sum property." >&2
+    exit 1
+  fi
+fi
+
+MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS"
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin; then
+  [ -n "$JAVA_HOME" ] &&
+    JAVA_HOME=$(cygpath --path --windows "$JAVA_HOME")
+  [ -n "$CLASSPATH" ] &&
+    CLASSPATH=$(cygpath --path --windows "$CLASSPATH")
+  [ -n "$MAVEN_PROJECTBASEDIR" ] &&
+    MAVEN_PROJECTBASEDIR=$(cygpath --path --windows "$MAVEN_PROJECTBASEDIR")
+fi
+
+# Provide a "standardized" way to retrieve the CLI args that will
+# work with both Windows and non-Windows executions.
+MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $*"
+export MAVEN_CMD_LINE_ARGS
+
+WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
+
+# shellcheck disable=SC2086 # safe args
+exec "$JAVACMD" \
+  $MAVEN_OPTS \
+  $MAVEN_DEBUG_OPTS \
+  -classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \
+  "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
+  ${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@"
diff --git a/1-rookie/ZGoodiesShop/mvnw.cmd b/1-rookie/ZGoodiesShop/mvnw.cmd
new file mode 100644
index 0000000..95ba6f5
--- /dev/null
+++ b/1-rookie/ZGoodiesShop/mvnw.cmd
@@ -0,0 +1,205 @@
+@REM ----------------------------------------------------------------------------
+@REM Licensed to the Apache Software Foundation (ASF) under one
+@REM or more contributor license agreements.  See the NOTICE file
+@REM distributed with this work for additional information
+@REM regarding copyright ownership.  The ASF licenses this file
+@REM to you under the Apache License, Version 2.0 (the
+@REM "License"); you may not use this file except in compliance
+@REM with the License.  You may obtain a copy of the License at
+@REM
+@REM    https://www.apache.org/licenses/LICENSE-2.0
+@REM
+@REM Unless required by applicable law or agreed to in writing,
+@REM software distributed under the License is distributed on an
+@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+@REM KIND, either express or implied.  See the License for the
+@REM specific language governing permissions and limitations
+@REM under the License.
+@REM ----------------------------------------------------------------------------
+
+@REM ----------------------------------------------------------------------------
+@REM Apache Maven Wrapper startup batch script, version 3.2.0
+@REM
+@REM Required ENV vars:
+@REM JAVA_HOME - location of a JDK home dir
+@REM
+@REM Optional ENV vars
+@REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands
+@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a keystroke before ending
+@REM MAVEN_OPTS - parameters passed to the Java VM when running Maven
+@REM     e.g. to debug Maven itself, use
+@REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
+@REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files
+@REM ----------------------------------------------------------------------------
+
+@REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on'
+@echo off
+@REM set title of command window
+title %0
+@REM enable echoing by setting MAVEN_BATCH_ECHO to 'on'
+@if "%MAVEN_BATCH_ECHO%" == "on"  echo %MAVEN_BATCH_ECHO%
+
+@REM set %HOME% to equivalent of $HOME
+if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%")
+
+@REM Execute a user defined script before this one
+if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre
+@REM check for pre script, once with legacy .bat ending and once with .cmd ending
+if exist "%USERPROFILE%\mavenrc_pre.bat" call "%USERPROFILE%\mavenrc_pre.bat" %*
+if exist "%USERPROFILE%\mavenrc_pre.cmd" call "%USERPROFILE%\mavenrc_pre.cmd" %*
+:skipRcPre
+
+@setlocal
+
+set ERROR_CODE=0
+
+@REM To isolate internal variables from possible post scripts, we use another setlocal
+@setlocal
+
+@REM ==== START VALIDATION ====
+if not "%JAVA_HOME%" == "" goto OkJHome
+
+echo.
+echo Error: JAVA_HOME not found in your environment. >&2
+echo Please set the JAVA_HOME variable in your environment to match the >&2
+echo location of your Java installation. >&2
+echo.
+goto error
+
+:OkJHome
+if exist "%JAVA_HOME%\bin\java.exe" goto init
+
+echo.
+echo Error: JAVA_HOME is set to an invalid directory. >&2
+echo JAVA_HOME = "%JAVA_HOME%" >&2
+echo Please set the JAVA_HOME variable in your environment to match the >&2
+echo location of your Java installation. >&2
+echo.
+goto error
+
+@REM ==== END VALIDATION ====
+
+:init
+
+@REM Find the project base dir, i.e. the directory that contains the folder ".mvn".
+@REM Fallback to current working directory if not found.
+
+set MAVEN_PROJECTBASEDIR=%MAVEN_BASEDIR%
+IF NOT "%MAVEN_PROJECTBASEDIR%"=="" goto endDetectBaseDir
+
+set EXEC_DIR=%CD%
+set WDIR=%EXEC_DIR%
+:findBaseDir
+IF EXIST "%WDIR%"\.mvn goto baseDirFound
+cd ..
+IF "%WDIR%"=="%CD%" goto baseDirNotFound
+set WDIR=%CD%
+goto findBaseDir
+
+:baseDirFound
+set MAVEN_PROJECTBASEDIR=%WDIR%
+cd "%EXEC_DIR%"
+goto endDetectBaseDir
+
+:baseDirNotFound
+set MAVEN_PROJECTBASEDIR=%EXEC_DIR%
+cd "%EXEC_DIR%"
+
+:endDetectBaseDir
+
+IF NOT EXIST "%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config" goto endReadAdditionalConfig
+
+@setlocal EnableExtensions EnableDelayedExpansion
+for /F "usebackq delims=" %%a in ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do set JVM_CONFIG_MAVEN_PROPS=!JVM_CONFIG_MAVEN_PROPS! %%a
+@endlocal & set JVM_CONFIG_MAVEN_PROPS=%JVM_CONFIG_MAVEN_PROPS%
+
+:endReadAdditionalConfig
+
+SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe"
+set WRAPPER_JAR="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar"
+set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
+
+set WRAPPER_URL="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.2.0/maven-wrapper-3.2.0.jar"
+
+FOR /F "usebackq tokens=1,2 delims==" %%A IN ("%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties") DO (
+    IF "%%A"=="wrapperUrl" SET WRAPPER_URL=%%B
+)
+
+@REM Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
+@REM This allows using the maven wrapper in projects that prohibit checking in binary data.
+if exist %WRAPPER_JAR% (
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Found %WRAPPER_JAR%
+    )
+) else (
+    if not "%MVNW_REPOURL%" == "" (
+        SET WRAPPER_URL="%MVNW_REPOURL%/org/apache/maven/wrapper/maven-wrapper/3.2.0/maven-wrapper-3.2.0.jar"
+    )
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Couldn't find %WRAPPER_JAR%, downloading it ...
+        echo Downloading from: %WRAPPER_URL%
+    )
+
+    powershell -Command "&{"^
+		"$webclient = new-object System.Net.WebClient;"^
+		"if (-not ([string]::IsNullOrEmpty('%MVNW_USERNAME%') -and [string]::IsNullOrEmpty('%MVNW_PASSWORD%'))) {"^
+		"$webclient.Credentials = new-object System.Net.NetworkCredential('%MVNW_USERNAME%', '%MVNW_PASSWORD%');"^
+		"}"^
+		"[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; $webclient.DownloadFile('%WRAPPER_URL%', '%WRAPPER_JAR%')"^
+		"}"
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Finished downloading %WRAPPER_JAR%
+    )
+)
+@REM End of extension
+
+@REM If specified, validate the SHA-256 sum of the Maven wrapper jar file
+SET WRAPPER_SHA_256_SUM=""
+FOR /F "usebackq tokens=1,2 delims==" %%A IN ("%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties") DO (
+    IF "%%A"=="wrapperSha256Sum" SET WRAPPER_SHA_256_SUM=%%B
+)
+IF NOT %WRAPPER_SHA_256_SUM%=="" (
+    powershell -Command "&{"^
+       "$hash = (Get-FileHash \"%WRAPPER_JAR%\" -Algorithm SHA256).Hash.ToLower();"^
+       "If('%WRAPPER_SHA_256_SUM%' -ne $hash){"^
+       "  Write-Output 'Error: Failed to validate Maven wrapper SHA-256, your Maven wrapper might be compromised.';"^
+       "  Write-Output 'Investigate or delete %WRAPPER_JAR% to attempt a clean download.';"^
+       "  Write-Output 'If you updated your Maven version, you need to update the specified wrapperSha256Sum property.';"^
+       "  exit 1;"^
+       "}"^
+       "}"
+    if ERRORLEVEL 1 goto error
+)
+
+@REM Provide a "standardized" way to retrieve the CLI args that will
+@REM work with both Windows and non-Windows executions.
+set MAVEN_CMD_LINE_ARGS=%*
+
+%MAVEN_JAVA_EXE% ^
+  %JVM_CONFIG_MAVEN_PROPS% ^
+  %MAVEN_OPTS% ^
+  %MAVEN_DEBUG_OPTS% ^
+  -classpath %WRAPPER_JAR% ^
+  "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" ^
+  %WRAPPER_LAUNCHER% %MAVEN_CONFIG% %*
+if ERRORLEVEL 1 goto error
+goto end
+
+:error
+set ERROR_CODE=1
+
+:end
+@endlocal & set ERROR_CODE=%ERROR_CODE%
+
+if not "%MAVEN_SKIP_RC%"=="" goto skipRcPost
+@REM check for post script, once with legacy .bat ending and once with .cmd ending
+if exist "%USERPROFILE%\mavenrc_post.bat" call "%USERPROFILE%\mavenrc_post.bat"
+if exist "%USERPROFILE%\mavenrc_post.cmd" call "%USERPROFILE%\mavenrc_post.cmd"
+:skipRcPost
+
+@REM pause the script if MAVEN_BATCH_PAUSE is set to 'on'
+if "%MAVEN_BATCH_PAUSE%"=="on" pause
+
+if "%MAVEN_TERMINATE_CMD%"=="on" exit %ERROR_CODE%
+
+cmd /C exit /B %ERROR_CODE%
diff --git a/1-rookie/ZGoodiesShop/pom.xml b/1-rookie/ZGoodiesShop/pom.xml
new file mode 100644
index 0000000..214132c
--- /dev/null
+++ b/1-rookie/ZGoodiesShop/pom.xml
@@ -0,0 +1,63 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+	<parent>
+		<groupId>org.springframework.boot</groupId>
+		<artifactId>spring-boot-starter-parent</artifactId>
+		<version>3.2.4</version>
+		<relativePath/> <!-- lookup parent from repository -->
+	</parent>
+	<groupId>com.z</groupId>
+	<artifactId>demo-one-2many</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<name>demo-one-2many</name>
+	<description>Demo project for Spring Boot</description>
+	<properties>
+		<java.version>21</java.version>
+	</properties>
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-data-jpa</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-web</artifactId>
+		</dependency>
+
+		<dependency>
+			<groupId>com.h2database</groupId>
+			<artifactId>h2</artifactId>
+			<scope>runtime</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.projectlombok</groupId>
+			<artifactId>lombok</artifactId>
+			<optional>true</optional>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-test</artifactId>
+			<scope>test</scope>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+				<configuration>
+					<excludes>
+						<exclude>
+							<groupId>org.projectlombok</groupId>
+							<artifactId>lombok</artifactId>
+						</exclude>
+					</excludes>
+				</configuration>
+			</plugin>
+		</plugins>
+	</build>
+
+</project>
diff --git a/1-rookie/ZGoodiesShop/src/main/java/com/z/demoone2many/DemoOne2manyApplication.java b/1-rookie/ZGoodiesShop/src/main/java/com/z/demoone2many/DemoOne2manyApplication.java
new file mode 100644
index 0000000..aa0529f
--- /dev/null
+++ b/1-rookie/ZGoodiesShop/src/main/java/com/z/demoone2many/DemoOne2manyApplication.java
@@ -0,0 +1,13 @@
+package com.z.demoone2many;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class DemoOne2manyApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(DemoOne2manyApplication.class, args);
+	}
+
+}
diff --git a/1-rookie/ZGoodiesShop/src/main/java/com/z/demoone2many/controller/ZCustomerController.java b/1-rookie/ZGoodiesShop/src/main/java/com/z/demoone2many/controller/ZCustomerController.java
new file mode 100644
index 0000000..59e4cc9
--- /dev/null
+++ b/1-rookie/ZGoodiesShop/src/main/java/com/z/demoone2many/controller/ZCustomerController.java
@@ -0,0 +1,25 @@
+package com.z.demoone2many.controller;
+
+import com.z.demoone2many.entity.ZCustomer;
+import com.z.demoone2many.repository.ZCustomerRepository;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+@RestController
+@RequestMapping("/api/v1")
+@RequiredArgsConstructor
+public class ZCustomerController {
+
+    private final ZCustomerRepository customers;
+
+    // TODO[9]: GET /customers/{id}
+    // Return the customer including nested orders and items.
+    // If not found, return 404.
+    @/* TODO fill */("/customers/{id}")
+    public ResponseEntity<ZCustomer> getCustomer(@PathVariable Long id) {
+        return customers./* TODO fill */(id)
+                        .map(ResponseEntity::ok)
+                        .orElseGet(() -> ResponseEntity.notFound().build());
+    }
+}
diff --git a/1-rookie/ZGoodiesShop/src/main/java/com/z/demoone2many/controller/ZOrderController.java b/1-rookie/ZGoodiesShop/src/main/java/com/z/demoone2many/controller/ZOrderController.java
new file mode 100644
index 0000000..7229ca7
--- /dev/null
+++ b/1-rookie/ZGoodiesShop/src/main/java/com/z/demoone2many/controller/ZOrderController.java
@@ -0,0 +1,41 @@
+package com.z.demoone2many.controller;
+
+import com.z.demoone2many.entity.ZOrder;
+import com.z.demoone2many.repository.ZOrderRepository;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import java.net.URI;
+import java.util.List;
+
+@RestController
+@RequestMapping("/api/v1")
+@RequiredArgsConstructor
+public class ZOrderController {
+
+    private final ZOrderRepository zOrderRepository;
+
+    // TODO[7]: GET /orders → return all orders
+    @GetMapping("/orders")
+    public List<ZOrder> getOrders() {
+        return zOrderRepository./* TODO fill */();
+    }
+
+    // TODO[8]: POST /orders → create a new order with items.
+    // Request body shape is up to you; simplest is:
+    // { "name": "office pack", "items": ["Pen","Notebook"] }
+    // Return 201 Created with Location header /api/v1/orders/{id}
+    @/* TODO fill */("/orders")
+    public ResponseEntity<ZOrder> createOrder(@RequestBody CreateOrderRequest req) {
+        ZOrder order = ZOrder.builder()
+                             .name(req.name())
+                             .items(req.items().stream().map(n -> com.z.demoone2many.entity.ZItem.builder().name(n).build()).toList())
+                             .build();
+        ZOrder saved = zOrderRepository./* TODO fill */(order);
+        return ResponseEntity.created(URI.create("/api/v1/orders/" + saved.getId())).body(saved);
+    }
+
+    // Simple DTO for POST body
+    public record CreateOrderRequest(String name, List<String> items) {} // TODO[8.1]
+}
diff --git a/1-rookie/ZGoodiesShop/src/main/java/com/z/demoone2many/entity/ZCustomer.java b/1-rookie/ZGoodiesShop/src/main/java/com/z/demoone2many/entity/ZCustomer.java
new file mode 100644
index 0000000..bd4367e
--- /dev/null
+++ b/1-rookie/ZGoodiesShop/src/main/java/com/z/demoone2many/entity/ZCustomer.java
@@ -0,0 +1,26 @@
+package com.z.demoone2many.entity;
+
+import jakarta.persistence.*;
+import lombok.*;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@Entity
+@Builder @NoArgsConstructor @AllArgsConstructor @Data
+public class ZCustomer {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @Column
+    private String name;
+
+    // TODO[1.1]: Map one customer -> many orders.
+    // Use a unidirectional relationship from customer to orders (no field back in ZOrder),
+    // cascading ALL and enabling orphanRemoval; use @JoinColumn("customer_id") so that ZOrder table has a FK.
+    @OneToMany(/* TODO fill cascade & orphanRemoval */)
+    @JoinColumn(name = "customer_id")
+    private List<ZOrder> orders = new ArrayList<>();
+}
diff --git a/1-rookie/ZGoodiesShop/src/main/java/com/z/demoone2many/entity/ZItem.java b/1-rookie/ZGoodiesShop/src/main/java/com/z/demoone2many/entity/ZItem.java
new file mode 100644
index 0000000..8aa583f
--- /dev/null
+++ b/1-rookie/ZGoodiesShop/src/main/java/com/z/demoone2many/entity/ZItem.java
@@ -0,0 +1,16 @@
+package com.z.demoone2many.entity;
+
+import jakarta.persistence.*;
+import lombok.*;
+
+@Entity
+@Builder @NoArgsConstructor @AllArgsConstructor @Data
+public class ZItem {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @Column
+    private String name;
+}
diff --git a/1-rookie/ZGoodiesShop/src/main/java/com/z/demoone2many/entity/ZOrder.java b/1-rookie/ZGoodiesShop/src/main/java/com/z/demoone2many/entity/ZOrder.java
new file mode 100644
index 0000000..c6425c6
--- /dev/null
+++ b/1-rookie/ZGoodiesShop/src/main/java/com/z/demoone2many/entity/ZOrder.java
@@ -0,0 +1,26 @@
+package com.z.demoone2many.entity;
+
+import jakarta.persistence.*;
+import lombok.*;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@Entity
+@Builder @NoArgsConstructor @AllArgsConstructor @Data
+public class ZOrder {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @Column
+    private String name;
+
+    // TODO[2.1]: Map one order -> many items.
+    // Keep it unidirectional (no backref in ZItem). Use cascade ALL, orphanRemoval true,
+    // and @JoinColumn("order_id") so ZItem table has a FK.
+    @OneToMany(/* TODO fill cascade & orphanRemoval */)
+    @JoinColumn(name = "order_id")
+    private List<ZItem> items = new ArrayList<>();
+}
diff --git a/1-rookie/ZGoodiesShop/src/main/java/com/z/demoone2many/repository/ZCustomerRepository.java b/1-rookie/ZGoodiesShop/src/main/java/com/z/demoone2many/repository/ZCustomerRepository.java
new file mode 100644
index 0000000..17e1f8a
--- /dev/null
+++ b/1-rookie/ZGoodiesShop/src/main/java/com/z/demoone2many/repository/ZCustomerRepository.java
@@ -0,0 +1,8 @@
+package com.z.demoone2many.repository;
+
+import com.z.demoone2many.entity.ZCustomer;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+// TODO[5]: expose a JpaRepository for ZCustomer with key type Long
+public interface ZCustomerRepository extends /* TODO fill */ {
+}
diff --git a/1-rookie/ZGoodiesShop/src/main/java/com/z/demoone2many/repository/ZOrderRepository.java b/1-rookie/ZGoodiesShop/src/main/java/com/z/demoone2many/repository/ZOrderRepository.java
new file mode 100644
index 0000000..4b65b18
--- /dev/null
+++ b/1-rookie/ZGoodiesShop/src/main/java/com/z/demoone2many/repository/ZOrderRepository.java
@@ -0,0 +1,8 @@
+package com.z.demoone2many.repository;
+
+import com.z.demoone2many.entity.ZOrder;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+// TODO[4]: expose a JpaRepository for ZOrder with key type Long
+public interface ZOrderRepository extends /* TODO fill */ {
+}
diff --git a/1-rookie/ZGoodiesShop/src/main/java/com/z/demoone2many/util/DemoData.java b/1-rookie/ZGoodiesShop/src/main/java/com/z/demoone2many/util/DemoData.java
new file mode 100644
index 0000000..9354c5b
--- /dev/null
+++ b/1-rookie/ZGoodiesShop/src/main/java/com/z/demoone2many/util/DemoData.java
@@ -0,0 +1,31 @@
+package com.z.demoone2many.util;
+
+import com.z.demoone2many.entity.*;
+import com.z.demoone2many.repository.ZCustomerRepository;
+import lombok.RequiredArgsConstructor;
+import org.springframework.boot.ApplicationArguments;
+import org.springframework.boot.ApplicationRunner;
+import org.springframework.stereotype.Component;
+
+import java.util.List;
+
+@Component
+@RequiredArgsConstructor
+public class DemoData implements ApplicationRunner {
+
+    private final ZCustomerRepository customers; // TODO[6]: inject the customer repo
+
+    @Override
+    public void run(ApplicationArguments args) {
+        // TODO[6.1]: If there are no customers, create one "Alice"
+        // with a single order "onboarding goods" holding two items:
+        // "Red T shirt" and "Red Hoodie". Save the customer.
+        if (customers.count() == 0) {
+            ZCustomer alice = ZCustomer.builder()
+                                       .name("Alice")
+                                       .orders(/* TODO fill with the order with the two items: red hoodie and red T shirt"*/)
+                                       .build();
+            customers.save(alice);
+        }
+    }
+}
diff --git a/1-rookie/ZGoodiesShop/src/main/resources/application.properties b/1-rookie/ZGoodiesShop/src/main/resources/application.properties
new file mode 100644
index 0000000..c266cde
--- /dev/null
+++ b/1-rookie/ZGoodiesShop/src/main/resources/application.properties
@@ -0,0 +1,8 @@
+spring.application.name=demo-one-2many
+
+spring.h2.console.enabled=true
+spring.h2.console.path=/h2-console
+spring.datasource.url=jdbc:h2:mem:testdb
+spring.datasource.driver-class-name=org.h2.Driver
+spring.datasource.username=sa
+spring.datasource.password=
diff --git a/1-rookie/ZGoodiesShop/src/test/java/com/z/demoone2many/DemoOne2manyApplicationTests.java b/1-rookie/ZGoodiesShop/src/test/java/com/z/demoone2many/DemoOne2manyApplicationTests.java
new file mode 100644
index 0000000..e1750cc
--- /dev/null
+++ b/1-rookie/ZGoodiesShop/src/test/java/com/z/demoone2many/DemoOne2manyApplicationTests.java
@@ -0,0 +1,13 @@
+package com.z.demoone2many;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class DemoOne2manyApplicationTests {
+
+	@Test
+	void contextLoads() {
+	}
+
+}