Feature Request Documentation about how Shader Graph generated code works (and shaders in general in SRP)

Tl;dr: documentation/tutorial request about how Shader Graph generated code (and shader coding in general in SRP) works

I have been worked with ShaderGraph and HDRP from a pair of months, and I am pleased with most of what I have seen.
However, due to some limitations (specifically, lack of in-editor Compute Buffers and Instanced Properties), I have to move the shader to code.

The generated code is a monster. There is a lot of passes, subshaders and conditional defines that makes modifiyng it a non-trivial task.

I have managed to remove some passes and implement some functionality and, little by little, unravel how the code structures and calls its functions.

However, besides slowing me down a lot (something I can carry with), there are still a lot of interrogants about the workflow of shader code in SRP. Some CG keywords are usable, some not; some function's purpose are not clear; there is a lot of hlsl includes; there is a lot of redundant/trivial code that I would like to remove, but don't know how it ties to the rest of the shader, etc.

I understand that SRP is still in flux, and it takes time to document properly.

But, well, it is, theoretically, ready for production, and I will like a little bit of info about how the new shader workflow functions under the hood.