You're not wrong. After re-reading it, I see what you're talking about. The text assumed that the user was already familiar with <a rel="nofollow" class="external text" href="https://www.freedesktop.org/wiki/Software/systemd/TheCaseForTheUsrMerge/">The Case for the /usr Merge</a>. I have greatly expanded the introductory paragraph to make it as clear as possible what is going on here. Please have a look and tell me what you think. —<a href="/wiki/User:JGaz" title="User:JGaz">JGaz</a> (<a href="/wiki/User_talk:JGaz" title="User talk:JGaz">talk</a>) 15:36, 2 January 2023 (UTC)