Things I do want to point out if you intend to make this as new user friendly as possible:
- The bottom section doesn't quite makes sense to include as it contradicts the purpose of this diagram. Similar reasoning for color coding and immutability tag; it makes sense to the experienced Linux users, not much for others.
- I can understand that the diamonds connected with a simple line are of equal standing, but it looks like steps. Users would also question which they should choose amongst them (or question why they exist if they seemingly serve the same purpose).