I'm endlessly fascinated by the variety of programming languages people seem to be able to come up with. Esolangs.org has become one of my favourite websites over the past few years. So I was wondering... is anyone else on Dev interested in esoteric programming languages?

I noticed that I'm the only person who's ever made a post with the #esolangs tag. Am I alone in my love for these misfits?

An esolang I recently found that I think is really cool is legit, a language where programs are defined by the commit messages in a Git repository graph. The structure of the graph and the content of the commit messages determines the function of the program (the contents of the repo itself are ignored).

A "Hello World!" program in legit looks like:

$ git log --graph --oneline
*   b63fd70 (HEAD -> master, origin/master, origin/HEAD) Merge pull request #1 from rohieb/master
|\  
| *   1f44c51 0
| |\  
| |/  
|/|   
* | b9e1e95 "Hello world\n"
| * fbb02fe "Hello world!\n"
|/  
*   8013037 (tag: reverse-loop) dup
|\  
| * 6883822 write 1 left [reverse-loop]
*   e0a4d04 (tag: print-loop) 1 right read dup
|\  
| * d646ef4 put [print-loop]
* 25a3a62 quit