[stavros]

I have, and it's really good, but it needs some investment in creating packages (if they don't exist) and has some annoyances (eg you can't talk to the network to preserve determinism). It felt a bit too heavy-handed for a few processes. We also used to use it at work extensively for all our production but migrated off it after various difficulties (not bugs, just things like having its own language).

[mixedCase]

You can talk to the network, either through the escape hatch or provided fetch utilities, which tend to require checksums. But you do have to keep the result deterministic.

Agreed on it being a bit too heavy-handed, and the tooling isn't very helpful for dealing with it unless you're neck-deep into the ecosystem already.