Just to clear up some confusion about how hashtag following works on Mastodon apps:

If you follow a hashtag on Mastodon, posts from those followed tags will be visible on your home timeline on the website AND in all the apps.

So, for example, you could log in through your server's website, follow the tags you want, and then go back to using your favourite app.

If you want to follow more tags, you can currently only do that through a website or Android apps Fedilab & Subway Tooter.

#Mastodon