Hope it fits the needs.

Is this something I run on the server?
(complete n00b here)
Call this file anything-you-want.php and just upload it in the same folder there is the merit.all.txt file.
But if you dont want, I could try making my own as well. I thought I had to scrape each user merit page or similar.
Exactly. Sorry, I forgot to mention it. I made two files.
The HTML-Output file will generate clickable links for everyone and the other file will provide other users with a "light API" for your file.
If you safe these files in the same directory on your server where the merit.all.txt is located, you can set $url to "merit.all.txt". If not, you may need to adjust the variable.