So, I checked the docs, and replaced all those places where I had to put my username with
$p.journal.username. And in the profile component, I noticed that I could use a smiliar technique to get my website URL and name from my profile, avoiding hardcoding. ($p.journal.website_name and $p.journal.website_url). I was wondering if we could start using that in our tutorials to make "no-rewrite" components and patches? Maybe edit a few of the existing tutorials as well?
Also, The doc on the user-class and on the page class can help find other places to change that.