I do architecture in Blender and kept missing one small thing from CAD: putting a dimension on something without leaving the app. So I built it. It is not a drafting board and it will not replace your CAD. It is the plugin you pull out when a colleague asks how wide that opening is: snap to two vertices, chain a few more if you need, screenshot, send. No export, no switching software just to get one dimension on screen. Geometry Nodes underneath, so the dimensions are real geometry and render like anything else. Sizes are set in paper millimetres and follow your drawing scale. Blender 4.5+, tested on 5.2 LTS.
