Futhark
Futhark is a purely functional, statically-typed, and purely functional programming language designed for high-performance computing on GPUs. It is primarily used for implementing parallel algorithms and performing computationally intensive tasks such as numerical simulations and machine learning.
Popularity: Less than 1% of developers are using or have used this language.*
*According to StackOverflow's 2023 survey.
Repositories on GitHub: 118