It would probably be easier for you to build your own system rather than use the posts API to build your calendar plugin (I think so!). If you decide to go this way, can you elaborate on how you are doing this then maybe we can help by adding hooks where you need it etc
Please Give Solution for Ads.txt issue too.
so AdSense Section is complete for NodeBB
Is any way to add ads.txt?
ive uploaded file through admin panel. but for google it needs like domain.com/ads.txt