This is a tool to create not-really-isometric drawing templates for the reMarkable 2 e-ink drawing tablet.
Not-really-isometric -- nosometric -- noso.
It's not perfect and it breaks in some instances. But it built what I needed it to.
Play with it at https://robotcaleb.github.io/noso_template/
Tweak the sliders and click the "Save template" button.
Once downloaded, rename the .png and .svg and place on your device at /usr/share/remarkable/templates/ and update the templates.json file. Recommend using templatectl - https://github.com/PeterGrace/templatectl