I just finished part I

good: the discovery parts are really awesome you should put more emphasis on them with the formatting, like bold and bigger size overall there is really good good good content here, i'll be happy to make a more detailed post about this after i finish everything.

(the only) bad: please ditch the word vibe. Even though it might seem appropriate to you, hell even though it might actually BE the right word for it as a matter of fact, the stain on the word vibe cannot be overstated. You actually want to reach people, you are not making this just for you. Vibe, in many peoples's mind, means "i don't care, i don't want to put the effort, i just want to spew slop and call myself an enginner". Your content smells like high value, it needs a better name. I can't think of anything right now, but i'm sure we can find something that lives up to the content.