Elite developers, who own the administrative privileges for a project, maintain a diverse profile of contributing activities, and drive the development of open source. To understand and further support the OSS community, I implement a set of activity analysis packages for conducting empirical studies on elite developers’ online contributing activities with fine-grained event data from GitHub. My analyses so far reveal elite developers’ routine workflows, and their impact on project outcomes when they allocate their efforts on various type of activities. From my existing results, I summarize how elite developers drive the OSS development and generate some design guidelines for supporting their routine workflows. The purposed tools can inform an individual elite’s decision making about effort allocation, and lead to improved project outcomes.