I’ve managed to make this work using Discourse’s built-in rss support. I’ve been using Feeder and have it set to check for new posts every 3 hours. So, I get notifications, not in realtime but close enough; it goes down to 15 minute intervals if you want it that fast (I haven’t felt a need), and I’m sure there are web-based aggregators with apps that do push notifications.
There are feeds for just about everything — categories, tags, people, topics… Just take the url, trim the trailing
/, and add
.rss. At the moment, the forum is low-enough traffic that I just subscribe to all posts, not filtered by category or anything, using this url: https://community.snowdrift.coop/posts.rss