Next to what is already stated above, your reasoning will likely also aid us in helping you find a proper answer, so do take your time to explain, not only will this make it easier for us to aid you, but to also give you decent advice on related topics or even give you some better sources.

Also, don't limit yourself to just 1 reference, get multiple sources, study them and (try to) understand their reasoning for choosing whatever solution they implemented and how they implemented it.

It doesn't matter if it's done in Unity, plain OpenGL, DirectX or whatever engine or framework. What matters is you understand the underlying algorithm so you can implement it in your own engine/framework or existing software.

It's also worth noting that the 2 links above apparently focus on 2 different aspects of the ocean rendering. Where Eric Bruneton is apparently focusing on the lighting model, the Unity port initially just focused on getting the ocean "feel".

With all this in mind, it will probably already help a lot if you simply state your goal, what are you trying to achieve?

And to finally also give an answer to your question: I would keep both and keep searching for more references.

i saw the code of this project and its really nasty especially shaders, my advice is not to use that at all