Custom Lighting Shaders for Mobile Unity Project

For the MERX project, I needed to implement my own lighting for the environment shaders. It was necessary to implement:
1. Reflection Probes Occlusion from Directional Lightmaps
2. BRDF specular from Directional Lightmaps.
At the same time, it was necessary to keep the performance not lower, but preferably higher than that of the Lit PBR Unity shaders for URP.

The location was created by Alexey Rumyantsev
https://www.artstation.com/cgrum

The Project Page on GooglePlay
https://play.google.com/store/apps/details?id=com.thematica_point.merx