Under the Hood: Timeline apps behind Facebook engineering

This post details the internal development and dogfooding of Open Graph integrations for Phabricator (code review, bug tracking), Pixelcloud (mockup/screenshot sharing), Scuba (data analysis), SIOG (spam fighting ML infrastructure), StayFitFB (workout tracking), and Pokemon (task completion gamification). It showcases how Open Graph actions and objects were used to create social features within these internal tools, enabling aggregation of activities, badges of honor, and insights into collaboration and usage patterns. Learnings include the importance of upfront object and action modeling.