I like Python, Java (yes!), Haskell, Rust.
For my personal projects, see https://github.com/jferard. I'm currently working on FastODS, a very fast and lightweight library for creating ODS (Calc) files in Java and ACPI implementation in Redox.
Some of my favorite own answers:
code-golfJul 24, 2019
MortarboardSep 4, 2017
CommentatorAug 10, 2017