[closeparen]

If you wouldn't buy the license key from Oracle, don't rent the network API from Amazon.

Proprietary software can be good in contexts where the integration surface is small. The denominator you want to code against in such a way that you become deeply intertwined with it & would have a hard time backing out is open source.

The "lowest common denominator" being Linux, Postgres, Kubernetes, etc. is not such a terrible thing.