Download S8
Get the stack, point it at a JDK, and boot. Current release is v1.2.0.
Download S8 1.2.0
S8-1.2.0.zip · recommended
S8-1.2.0.zip is the current public release: one Java stack archive for macOS, Linux, and Windows.
Unzip it, point S8 at a JDK, and boot.
After you download
S8 reads machine configuration from /etc/s8-conf.properties:
JAVA_HOME = /Library/Java/JavaVirtualMachines/temurin-25.jdk/Contents/Home
dev.stack = /Users/you/qx/git
prod.stack = /Users/you/stack
Validate the server XML config against schema.xsd. Then follow Your first app or read how build.properties identifies a module.