I've been surprised how much use I've got out of the SIP Diagrams site. This post covers a couple of follow up tweaks to improve the experience.
In my 2020 Summary blog post I touched on the Azure DevOps built-in wiki and how well put together it is. One of the best features is the support for graphs via mermaid. I do however often find myself creating a new graph by copy/pasting from the last mermaid SIP flow graph I edited.