GitHub - scouter-project/scouter: Scouter is an open source APM (Application Performance Management) tool. GitHub - scouter-project/scouter: Scouter is an open source APM (Application Performance Management) tool. Scouter is an open source APM (Application Performance Management) tool. - GitHub - scouter-project/scouter: Scouter is an open source APM (Application Performance Management) tool. gi..