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Or you can just make a remote node out of your C/Java/Rust/whatever code and not worry too much about it crashing your Erlang system.

It's not just crashing either, it's taking a long time to execute a given function in the native code - that can also cause problems for the Erlang system running it.

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Remote nodes have overhead, however if you can handle that overhead then you definitely should use a remote node or Port over a NIF. However, NIF's taking a long time to run is not so much of an issue anymore now that the dirty NIF scheduler is enabled by default in the BEAM.

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