[lenzai]

I have had great results using https://structurizr.com/ to generate c4model.com

The only tool for diagram as code with which achieved 100% DRY.

Very interesting tool by the inventor of C4

[karmaniverous]

I like it, but I like PlantUML better. Shitty documentation but awesome UML support, and also supports GraphML and a bunch of smaller libs like C4.