There are several ways to get notified of new topics in this forum:
Easiest one is to change your Preferences->Notifications to receive Desktop notifications, or Email notifications weekly, daily, on every topic.
And the other one is to subscribe through RSS
at https://forum.fair.coop/latest.rss
by using any RSS client or a Telegram bot like @TheFeedReaderBot
then put inside the bot.
/add https://forum.fair.coop/latest.rss
(Thanks @guyj for the tip
)