There needs to be detailed comments for at least ONE of those examples! Very cool. I've looked into k and J...they look like fun toy languages.
https://raw.githubusercontent.com/JohnEarnest/ok/gh-pages/ik... ("dissolve" effect)
https://raw.githubusercontent.com/JohnEarnest/ok/gh-pages/ik... (UPC generator)
https://raw.githubusercontent.com/JohnEarnest/ok/gh-pages/ik... (random island coasts)