Thanks @mootari for: https://beta.observablehq.com/@mootari/embedding-fonts-into-an-svg, it’s very useful.
It works very well for me for the PNG export, but not for the SVG one:
My setup: Ubuntu 18.06, Firefox 66.0b3.
Do you have some ideas of why it could fail?
Sidenote: it’s not clear to me if this forum is only dedicated to discussions about ObservableHQ itself, or also about the content of the notebooks. If this question should go to another place, please just tell me!