wptc-track package not found in apk

[Xunius]

Hi, I'm playing around with this awesome app. I noticed that in the What works wiki page the wptc-track package is listed to be working. However, when trying to install it using apk add wptc-track, it said

wptc-track (no such package):
    required by: world[wptc-track]

Is the What works page outdated about this entry or I'm doing something wrong? Thanks