I will never use any other language for server apps than C. C is a language for getting things done. It's finished and final. It will not change. There will be no new surprises, no new operators, and no unpublished packages. There are just source files. Write, compile, ship, repeat. You used it in 1990 to ship, you used it in 2000 to ship, you used it in 2010 to ship, you used in 2020 to ship, and you will use it in 2030 to ship. Learn once, ship forever.
Aways nice to see good reasoning. Though I'd veer away from it if the task is too large and the program needs to be updated frequently by multiple people.
Also, you got any recommendations for a c library for server apps?