Note to self about #online #diagrams and #charts:

1. excalidraw.com for sleek hand-drawn diagrams (just a few shapes, but great UI)
2. app.diagrams.net for blocky, corporate-looking diagrams (plenty of clipart, bloated UI)
3. mermaid.live for auto generation of diagrams belonging to a handful of types (computing, engineering, business), similar to #Graphviz (very limited, but declarative and text-based)
4. asciiflow.com for the lolz, basically