You asked for "calendar libraries with recurrence"

Full-sized JavaScript Calendar with resource and timeline views, drag-and-drop, recurring events and a real plugin system.

The most comprehensive authentication framework for TypeScript with first-class plugins.

Headless TypeScript ORM with a SQL-shaped query builder, edge-friendly, zero magic.

Query Postgres in natural language with schema-aware introspection. Use it in databases workflows directly from chat — no scripting, no glue code.

TypeScript-first schema validation with static type inference. The de facto runtime types for TS.

Composable charting library built on React components with a declarative API and SVG output.