Cal.com
Open source contributions to Cal.com, the scheduling infrastructure for everyone.
The challenge.
Large enterprise scheduling infrastructure requires robust multi-calendar sync, self-hosted Docker compatibility, and clean API boundaries across distributed time zones.
The solution.
Contributed fixes and optimizations directly to the Cal.com upstream repository, improving self-hosting workflows, edge-case meeting conflicts, and scheduling stability.
Under the hood.
Monorepo architecture with Next.js web client, tRPC API layer, Prisma ORM, and background job queues coordinating asynchronous calendar provider sync.
The implementation.
Contributed to the core Cal.com open source repository, helping improve the scheduling infrastructure, fixing bugs, and enhancing the self-hosted deployment experience. Cal.com is built with TypeScript, Next.js, and Prisma.
Engineering highlights.
- Investigated and resolved edge-case calendar synchronization anomalies in self-hosted instances.
- Improved developer ergonomics and container deployment configurations.
- Adhered to strict TypeScript typing and comprehensive automated test suites.