Programming languages I think are useful/interesting to learn (apart from C#):

C, so you learn to appreciate garbage collection.
Scheme, by which I mean work through SICP.
Python, because it’s really useful.
Kotlin, in case you need to build something on the JVM.

1/4

JavaScript. Sorry.
TypeScript, good introduction to more expressive typing.
F# so you can say “yes, actually, I *have* tried it.”
Rust, because it’s amazing for writing system code and performance-critical stuff.
SQL because you shouldn’t rely on ORMs.

2/4

Go, in case you need to submit a PR to a DevOps project.
Elixir, because Erlang is super hard but the BEAM VM is incredible.
Assembly to really grok how CPUs work.
Brainfuck for fun - just write Hello World
Zig, just looks good to me.

3/4

Bash, for writing better Dockerfiles.
Perl, because I hate you.
APL, because you can write Conway’s Game of Life in one line.
Rockstar, because you can sing your code and also my friend Dylan invented it.
Forth. Seriously, Forth is mental, you should try it.

4/4 FIN

If you think there’s anything missing please reply, I’m interested in this stuff.

Mark Rendle 🇺🇦 Icon - for well integrated generators and success driven control flow
Ada - for pervasive design by contract
Smalltalk - for a self hosted dev environment with a real method browser
6502 - for a simple enough CPU to count every cycle
ARM - for something far more orthogonal