Mastodon Hashtag Spreader
We have a script on one of our servers which streams all posts for specific hashtag from chaos.social and puts the URLs of those posts into the search entry of our own instance. Thus, the URLs will get fetched by our instance and the posts is added to our hashtag timeline.
pip3 install Mastodon.py git clone https://github.com/clerie/mastodon-hashtag-spreader.git cd mastodon-hashtag-spreader/ cp config.json.example config.json nano config.json
Edit config for your needs.
To get this script work, you need an application token on each instance you want to get connected to. The needed scopes are depending on the role of the instace.