Operately is an open-source company operating system for coordinating goals, projects, and teams. It provides a full collaboration suite including spaces (groups), goals with OKRs, project management with milestones and tasks, check-in cadence, retrospectives, discussions, document and file management (Resource Hubs), KPI tracking, and people management. The system is built as a monolith with a Phoenix (Elixir) backend serving a custom TurboConnect API (mutation/query protocol) and a React/TypeScript single-page application frontend with a reusable component library (turboui). It also offers a CLI tool, Model Context Protocol (MCP) integration for AI agents, and extensive background job processing via Oban for notifications, email delivery, search indexing, and billing operations. The architecture follows a clean domain-driven design with operations (Ecto.Multi transactions), activity logging (event sourcing with embedded schemas), an access control system with hierarchical groups and bindings, and a rich content editor with link enrichment and blob storage. The codebase is well-tested with both backend (ExUnit, Wallaby) and frontend (Jest, React Testing Library) tests, and includes a demo data builder for development. The enterprise edition (ee/) extends the core with SaaS admin capabilities, billing management via Polar, site messages, and feature flags. The system has evolved significantly with over 115 data migrations, indicating active development. While the core architecture is solid and many patterns are reusable, there are some incomplete features (e.g., stubbed notification handlers, missing email templates) and occasional code duplication between internal API and MCP tool layers. Overall, it demonstrates strong engineering craftsmanship with practical trade-offs for an open-source SaaS application.