Launch HN: Airbyte (YC W20) – Open-Source ELT (Fivetran/Stitch Alternative)
The fundamental challenge of open-source ETL is that high-quality connectors require understanding and working around all kinds of corner cases in the API of each data source. It’s very hard to get open source contributors to do this kind of work; it’s a real slog. Hence at Fivetran we’ve always stuck with the commercial route.