1- Download the "GOBOS LIGHTING Library" .zip file

2- Unzip the file

3- Copy the "GOBOS LIGHTING Library" folder on your personnal "User Asset Libraries" blender paths preferences

(be sure that these 3 files are in your "GOBOS LIGHTING Library" folder


4- "GOBOS LIGHTING Library" now ready to use in your Blender Asset Browser !

5- Drag & Drop to Create !

Blender 4.0 Update : 
blender modify things on the lights parameters, I had to adapt certain functions on the nodes. 
I put a past & replace blender4.0 ready files when the beta version was released, several weeks ago, you will find it in the download product files.
Now to use the blur effect : Leave the default Size at 0 and go to the gobos node options using the Radius (Blur) option.