[apehx]

Backend: Spring boot with Kotlin, openapi-generator for server stubs, JOOQ for database interaction.

Frontend: React, antd as a component library, openapi-generator for api clients.

Database: PostgreSQL, flyway for migrations.

Out of all the stacks I've used over the years, this is the one I'm happiest with. It's very stable, each tool has excellent documentation and active communities, and it's just plain fun and productive to work with.