[dgarrett]

Fabien Sanglard's blog is one of my favorites. He posts mostly about internals and implementation details of classic video/computer games, plus other tech like Git and USB.

https://fabiensanglard.net

And if you find his blog to your liking, he has a couple of books doing a deeper dive into the internals of Wolfenstein 3D and Doom.

[Bishop_]

His series of posts on Another World and its ports are a solid read.

[tluyben2]

You can buy some of his work in book form as well.

[cdevroe]

omg this is awesome, thanks!