https://www.diagrams.net/
https://app.diagrams.net/
https://app.diagrams.net/?mode=github

https://github.com/jgraph
https://github.com/jgraph/drawio
https://github.com/jgraph/drawio-desktop
https://github.com/jgraph/drawio-docs
https://github.com/jgraph/drawio-libs

https://snapcraft.io/drawio

https://github.com/jgraph/docker-drawio

https://marketplace.visualstudio.com/items?itemName=hediet.vscode-drawio
    https://github.com/hediet/vscode-drawio

2020
https://desk.draw.io/support/solutions/articles/16000067790