add justfile with recommended/suggest build aliases

.justfile

@@ -0,0 +1,22 @@
+
+mvncmd := env_var_or_default("QMVNCMD", "./mvnw -T0.8C")
+
+# build main project quickly
+build:
+   {{mvncmd}} -Dquickly
+
+# build main project fast - skip docs, tests, ITs, invoker, extension validation, gradle tests, truststore
+build-fast:
+    {{mvncmd}} -e -DskipDocs -DskipTests -DskipITs -Dinvoker.skip -DskipExtensionValidation -Dskip.gradle.tests -Dtruststore.skip clean install
+
+# build just docs, skipping as much unnecessary as posible. 
+build-docs:
+    {{mvncmd}} -e -DskipTests -DskipITs -Dinvoker.skip -DskipExtensionValidation -Dskip.gradle.tests -Dtruststore.skip -Dno-test-modules -Dasciidoctor.fail-if=DEBUG clean install
+
+# format code according to Quarkus coding conventions
+format:
+    {{mvncmd}} process-sources -Denforcer.skip -Dprotoc.skip
+
+# run Quarkus CLI from local built snapshot
+qss:
+    java -jar ./devtools/cli/target/quarkus-cli-999-SNAPSHOT-runner.jar