How to package or compile or X locally?

I miss an entry in the README.md to compile it locally, in order to test locally features or even just play with the examples

Failure attempts

• Attempt1: .mvn clean compile
  • try to use the corresponding maven wrapper without succeed
• Attempt2: specifying locally in the ".m2/toolchains.xml", the jdk entry to my JDK v11 + mvn clean compile

  ...
  <type>jdk</type> 
    <provides>
      <version>1.11</version>
      <vendor>zulu</vendor>
    </provides>
    <configuration>
      <jdkHome>/Library/Java/JavaVirtualMachines/zulu-11.jdk</jdkHome>
    </configuration>
  ...
  

• Attempt3: specifying in the root pom.xml + mvn clean compile

  <main.java.version>1.11</main.java.version>
  

Current stack locally

• Maven

  Apache Maven 3.9.9 
  Java version: 11.0.24, vendor: Azul Systems, Inc.
  OS name: "mac os x", version: "15.2", arch: "aarch64", family: "mac"
  

• Java

  openjdk 11.0.24 2024-07-16 LTS
  OpenJDK Runtime Environment Zulu11.74+15-CA (build 11.0.24+8-LTS)
  

Review README.md, the root pom.xml, and the reported Maven commands first. Verify the documented local build steps with the stated Maven and Java versions, then update README.md with the working command and prerequisites so a reader can compile or package the project locally.