quine-relay – an uroboros program with 80+ programming languages

quine-relay – an uroboros program with 80+ programming languages.

quine relay

If you didn’t get it, here’s a better description:

This is a Ruby program that generates Scala program that generates Scheme program that generates …(through 80 languages in total)… REXX program that generates the original Ruby code again.

Insanity at its best!

P.S.: Quine (computing) Wikipedia page comes handy:

A quine is a non-empty computer program which takes no input and produces a copy of its own source code as its only output. The standard terms for these programs in the computability theory and computer science literature are “self-replicating programs”, “self-reproducing programs”, and “self-copying programs”.

mermaid – markdown-like generation of flowcharts and diagrams

mermaid – markdown-like generation of flowcharts and diagrams.  This is like a web-oriented, d3-based implementation of the dot tool from the GraphViz package.

 

graph

What were the technical limits that Twitter reached with Ruby on Rails?

What were the technical limits that Twitter reached with Ruby on Rails?

Quora question that has some well researched answers.  This is quite handy for any system architect or web developer.