[Pyramid Scheme](https://github.com/ConorOBrien-Foxx/Pyramid-Scheme) is an esoteric language whose programs are ascii-art pyramids. psll lets you write them in a lisp-like syntax instead, with macros, strings, def and code-golf optimisations, and compiles that to the pyramids for you.

For example, this psll program

 (set a 6) (set b 7)
 (out (* a b))

compiles to

     ^        ^          ^
    / \      / \        / \
   /set\    /set\      /out\
  ^-----^  ^-----^    ^-----
 /a\   /6\/b\   /7\  /*\
 ---   ------   --- ^---^
                   /a\ /b\
                   --- ---

and prints 42.

Commands:

• psll compile prog.psll -o prog.pyra -- compile to Pyramid Scheme
• psll run prog.pyra -- run a Pyramid Scheme program
• psll compile-and-run prog.psll -- both in one go

Ruby and the Pyramid Scheme interpreter are bundled, so everything works offline out of the box.

Read more in [the SIGBOVIK paper](https://github.com/lczyk/psll-lang/blob/master/sigbovik-paper/sigbovik-psll.pdf).