Pony IO

I just heard about this programming language which has built-in features that I really like, such as no locks and no nulls.

I'll need to play with it to truly understand its uniqueness and value.

https://github.com/ponylang/ponyc

https://www.ponylang.io/

Arduino - Programming Language

I am just now hearing of this programming language and maybe it's because I don't work near hardware. But, this is good to know and received from reading IEEE Spectrum's top programming languages of the year.
https://spectrum.ieee.org/at-work/tech-careers/top-programming-language-2020

More on Arduino
https://www.arduino.cc/

Go for ML Infrastructure Engineering

"Python will (and should) remain the most popular language for data science and machine learning engineering. However, when it comes to machine learning infrastructure, we’re happy with Go."

I definitely want to learn more...

https://towardsdatascience.com/why-we-deploy-machine-learning-models-with-go-not-python-a4e35ec16deb

https://github.com/cortexlabs/cortex