most data engineers would think of something like Fivetran when you say "ETL" (look at the ETL section here[0]).

It looks like Amphi could handle some low code transformations (the "T" in ETL), but calling it ETL feels like a stretch.

So to rephrase a bit, if you're looking for an open source, python based Fivetran alternatives, dlt and meltano would be my picks.

0 - https://mattturck.com/landscape/mad2024.pdf)