This would be separate to devlogs. For example it could be a blog about an in depth look at the level design in a popular game series or methods for optimising 3D models (I'm just spitballing) but essentially anything devs might want to write about that does not link directly to their own game. Like I mentioned something similar to gamasutra where people can cover more high level game dev topics as opposed to just writing within the context of their own games published here.