node-mermaid 8.14.0+~cs11.4.14-1 (amd64 binary) in ubuntu kinetic

 sequence diagrams, class diagrams, gantt charts and git graphs.
 .
 It can help visualize flowcharts, diagrams, ganttcharts and git charts can be
 scripted in a markdown syntax, with a varitety of different symbols and chart
 types available. Since the diagram source is text based,
 it can be part of production scipts.
 .
 Automates the diagram generation instead of making it manually.
 .
 Node.js is an event-based server-side JavaScript engine.