HLSL
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Local UVs for Sprites in Sprite Sheet/Atlas
A small post explaining how to convert the UVs of a sprite sheet (or sprites packed in an atlas) into local 0-1 coordinates across each sprite in the shader
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Writing Shader Code in Universal RP (v2)
Explains how shader code (ShaderLab & HLSL) is written to support the Universal RP
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Intro to the Shader Pipeline
An introduction to what a Mesh, Shader and Material is in Unity, how to set Shader Properties from C#, various types of Batching, and a brief look at Forward, Forward+ and Deferred rendering paths
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Depth
A big post explaining everything about Depth : Depth Buffer, Depth Texture / Scene Depth node, SV_Depth, Reconstructing World Position from Depth, etc.