Pikchr: Documentation

https://pikchr.org/home/doc/trunk/homepage.md

Pikchr (pronounced “picture”) is a PIC-like markup language for diagrams in technical documentation. Pikchr is designed to be embedded in fenced code blocks of Markdown or similar mechanisms of other documentation markup languages.

Source-Code License: 0-clause BSD

The Pikchr source code is a self-contained original work. It has no external dependencies apart from the standard C library and does not use code taken from the internet or other external sources. All of the Pikchr source code is released under a zero-clause BSD license. After being processed using Lemon, the Pikchr source code is a single file of C89 named " pikchr.c ". These features are designed to make Pikchr easy to integrate into other systems.

Added to Fossil, designed for integration anywhere. I dig drh’s design sense.