I have installed LibreCAD years ago and used it 3 or 4 times to add measurements on a downloaded drawing. Installed it with just "pacman -S librecad" and enter. Takes just ~82.7 MB on the disk. No account, no background service, completely gratis. Never asked me for an update, because it is always updated with the rest of the system. For all the years it sits there, waiting for a moment to be needed.

While I do get the appeal of the ability to squeeze desktop program into a browser, especially when using someone else's computer, so thank you for the project, while I do not understand the level of push away desktop programs get sometimes.

In a default native install, I get a crosshair and grid dots, and when I select "line > 2 points" I can click on the canvas twice and I get a line between those locations.

Edit: All tools appear to be broken and clicking on the canvas after selecting a tool doesn't draw anything.

Google Chrome Version 150.0.7871.46 (Official Build) (64-bit)

I also tried in an incognito tab in case it was an extension or cache issue, still nothing.

Oh yeah look somebody did it 4 years ago: https://github.com/TrevorDArcyEvans/solve-space-web

Plus SolveSpace is actually a good CAD app, especially for simple stuff. (For complex stuff the only good open source option is FreeCAD.)

But qcad is very straight forward to use, runs on Linux, and is affordable. Unfortunately no 3D