This is a wonderful idea that fills a gap that has caused me much pain! When it's more stable I'll be looking for (or creating) an Obsidian plugin, a VS Code extension, etc.
Opening reladraw/docs/index.html to make a diagram then copy-pasting to save it is a little cumbersome.
Thanks very much. And, I totally agree. The workflow at present without these quality of life features is a bit rough around the edges :)
I'll use it next week for a diagram I've been trying to create for work and I'll let you know if I run into anything it can't handle.