[D] Suggestions for state-of-the-art genetic algorithm implementations or alternatives for black box optimization?

I build various hardware components that take in bias voltages to tune them to various states. No closed form relationship exists to find these values, and output is very finicky with respect to the inputs. Furthermore, they need to be calibrated over a wide range of desired outputs and different fabrications of the hardware need different tuning voltages. I have anywhere from 4 to 8 tuning variables.

Because manually tuning isn't feasible, I want to look into genetic algorithms or …

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