Hair Tool is add-on for Blender that will help you generate hair-card, shell hair or curve hair in non destructive way, using geometry nodes and python. For Blender 3.6 (or 4.x) - use Hair Tool 3.x (only new hair curves are supported) - and: 'HairLibrary_3.x_date.zip' For 'old' Blender 3.3 (up to 3.6) use 'old' Hair Tool. 2.46 (last version that supports 'old' curves) - and: HairLib_18_12_2022.zip