1. If you don't already have one installed, you will need to download and install Oracle or Open JDK 8.

2. If you don't already have it installed, you will need to download and install the latest Maven 3.x.

3. Download the sources zip.

4. Unpack the zip, then from within the folder into which you unpacked, browse to the `jbdevstudio-product-*` folder.

5. Run `mvn clean install` to build JBoss Developer Studio.

6. For additional commandline flag options when building, look in the pom.xml file in the `jbdevstudio-product-*` folder.

7. Once built, look for `target/` folders, such as `installer/target` or `site/target` for the resulting built content.