Creating a PBR textures from ONLY one image in blender

IN BLENDER| PBR textures from ONLY one image, HOW !?
u will know how to create a normal map displacement and even roughness map from only 1 image in just under 8 min using nodes in blender 2.8, blender 2.9.
*TIPS
Physically-based rendering (PBR) textures are the newest form of photorealistic game-based materials.
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