Technology stack
Libraries and versions. Shared libraries are listed once. As of 5 Nov 2026.
Both platforms
Frontend
| Library | Version |
| React | 18.3.1 |
Data
Webinar Platform
Frontend
| Library | Version |
| Next.js | 15.5.28 |
| TypeScript | 5.9.3 |
| Zustand | 5.0.8 |
Backend
| Library | Version |
| Node.js | 22 |
| jose | 6.2.13 |
| tsx | 4.23.15 |
Data
| Library | Version |
| PostgreSQL | 16.4 |
| Drizzle ORM | 0.45.4 |
| Drizzle Kit | 0.31.11 |
| postgres | 3.4.9 |
Testing
| Library | Version |
| Vitest | 5.0.5 |
| Testing Library (React) | 16.3.3 |
| Playwright | 1.64.1 |
| ESLint | 9.39.4 |
| Prettier | 3.8.3 |
LeadOS
Frontend
| Library | Version |
| React Router | 6.30.3 |
| Vite | 6.4.2 |
| Tailwind CSS | 3.4.19 |
Backend
| Library | Version |
| Python | 3.12 |
| FastAPI | 0.162.0 |
| Starlette | 1.10.0 |
| Uvicorn | 0.54.0 |
| Pydantic | 2.14.1 |
| PyJWT | 2.10.1 |
| bcrypt | 4.2.1 |
| structlog | 26.1.0 |
| HTTPX | 0.28.1 |
Workflow and events
| Library | Version |
| Temporal | 1.31.2 |
| Temporal Python SDK | 1.34.0 |
| aiokafka | 0.15.0 |
Data
| Library | Version |
| PostgreSQL | 16.15 |
| psycopg | 3.3.6 |
| SQLAlchemy | 2.1.6 |
| Alembic | 1.20.1 |
| Polars | 1.41.2 |
| pandas | 3.0.5 |
Testing and quality
| Library | Version |
| pytest | 9.1.1 |
| Hypothesis | 6.170.9 |
| Vitest | 4.1.8 |
| Ruff | 0.17.2 |
| mypy | 2.4.0 |