Quarkus produces a directory (typically target/quarkus-app/ ) containing several files. At the root of that directory sits quarkus-app/quark-run.jar —often symlinked or referenced simply as in documentation and scripts.
Build the project using Maven: ./mvnw.cmd clean package -DskipTests . quark.jar
If you meant an (not a design piece), I can sketch a minimal but working quark.jar with a few core operators and a fused pipeline. Would you like that instead? quark.jar