Hi, AndreCarrotflower here. This is my alternate account which I established on Commons before the fork and which I now use to upload original content there. If it were possible to merge this account into my primary one, I would, but until that becomes possible, please know that any edits made to Wikivoyage from this account were just because I forgot to log out from Commons, and there's no malicious intent.
This website uses the Wikivoyage API to get and display all the information you see. This is the MediaWiki API, which is a general API for accessing data from Wikimedia projects. You can find information about it here: MediaWiki API.