Who on #Fediverse self-host #Indieweb static website with #ActivityPub #ActivityStream , with 3rd party webhook endpoint gateway, and use desktop client\script to send json REST POST replies in to

Who on #Fediverse self-host #Indieweb static website with #ActivityPub #ActivityStream , with 3rd party webhook endpoint gateway, and use desktop client\script to send json REST POST replies in to remote #ActivityPub #ActivityStream INBOX ?

I would like to see & hear details, examples about such setups.

crosspost from: https://aus.social/@pepper0/115227498301997558
crosspost to: @indieweb