Installation

1- Download the latest .zip file (currently Blender 4.2)

2- Install the addon as you would with any addon (Preferences > Add-ons > Install... )

note: there is a "legacy_files" compressed folder available as well if you use earlier versions, download it and unzip the files, then install the suitable one.

How to use it ?
Once installed, go to File > Import > Blueprints and select all the images you need.