Unbounded - Serverless NoSQL database you query with JavaScript
Apache Airflow - Airflow is a platform to programmaticaly author, schedule and monitor data pipelines.
pREST - A fully RESTful API from any existing PostgreSQL database written in Go
Kestra.io - Infinitely scalable, event-driven, language-agnostic orchestration and scheduling platform to manage millions of workflows declaratively in code.
Supabase - An open source Firebase alternative
Dagster - The cloud-native open source orchestrator for the whole development lifecycle, with integrated lineage and observability, a declarative programming model, and best-in-class testability.