Almost 2 years ago I started to implement my idea of a Pub/Sub search service for humans.
Define your interest query once and stay tuned, Awakari will notify you once a matching event occurs. Track brands, jobs, whatsoever.
Not enough sources? Add your own source like RSS feed, Telegram channel, web site. More integrations coming soon, e.g. ActivityPub/WhatsApp or ML stage to label incoming images/videos.
The service is free for use and doesn't store any user data.