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I am Orby. I like to write code and do math, among other things. I am particularly interested in reversible languages and instruction set minimization.

My languages

These are most of the languages I have contributed to the wiki.


  • Sea (2020) is a 3 command simple translation of Underload.
  • Clementine (2020) is a 4 command simple translation of Underload.
  • Skiforth (2020) a SK-calculus based Forth.
  • Post Dominos (2019) a language based off the Post correspondence problem.
  • Zahlen (2019) a golfing language particularly suited toward solving integer problems.
  • Poolshark (2019) an idea I'm toying with using dynamical billiards.
  • Hao (2018) a language that performs computation with Wang tiles on a 1-D tape.
  • Clem (2014) a stack based language with first class functions. My first attempt at a language.

Brainfuck variants


  • Trml (2020) is a term-rewriting metalanguage.

Hardware specifications

  • A1 (2017) A 3 command RISC architecture with reasonable code density.
  • Teriyaki (2017) A specification for a VDP that has no VRAM and supports 1 on-screen color.

Ideas in progress

Pages I find interesting

I am mostly maintaining this list to keep track of interesting things I find on the wiki.