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Is there something about Mastodon and the Fediverse that you need help with?
Reply to me or send me a DM and I'll try to help if I can, or put you in touch with someone else who can help.
Don't worry if a question seems silly or obvious! The idea of this account is to especially help new people.
@feditips I have read somewhere that you can have content from other platforms show up in your timeline. But I haven't found a way to link my mastodon and peertube accounts to make that work.
Have I misunderstood the technology, or ist that actually possible somehow?
It's totally possible, it works really well.
It's so seamless that most people don't even realise they are looking at other platforms! 
For example, if you click on @theatticdwellers you will see the profile of a PeerTube account which you can follow by just clicking on "follow". And the posts in that profile are PeerTube videos, which you can interact with by replying to them.
Another example, @Iancylkowski is a Pixelfed account. Click "Follow" to follow it.
@feditips @theatticdwellers @Iancylkowski Ok, but how do I make my own PeerTube videos show up as posts?
And is it possible to see videos from PeerTube channels I have subscribed to in my mastodon feed?
To make anything on the Fedi show up as posts on your own server, copy and paste the address into the search box.
So, this could be a web address, or it could be an account address. Either way, it will make your server or app to show the profile or post within its own interface.
@feditips Ah! Now I got it. I have to subscribe here separately.
Yes, each server is totally independent so you will need to subscribe separately if you're on another server.
I'm trying not to take your comments as dismissive, but at first read, that sounded pretty rude to me. I understand that the servers are separate, but I'm also aware that there are protocols like OAuth that allow half the web to use Gmail, Twitter, LinkedIn, or other trusted servers to log into completely different services.
There are also groups like the IndieWeb community that have extended this framework to their own personal sites.
https://indieweb.org/IndieAuth
Apologies, I wasn't intending it as rude, I was just trying to get across what it meant technologically.
" allow half the web to use Gmail, Twitter, LinkedIn, or other trusted servers to log into completely different services."
Again, not intended as rude, but I think there might be some disagreement over what constitutes trusted.
I would never use Google or Twitter or Microsoft accounts to log in on another service, and they are all centralised services.
I realise Google etc are very widespread and convenient because of that, but society is paying a heavy price for relying on such centralised services, especially as their business model is built around spying on their users.
The idea of the Fediverse is to offer an alternative to such surveillance and centralised hegemony.
@ed_beck@indieweb.social @feditips@mstdn.social @stefanie@social.anoxinon.de the fundamental technical issue with this ignoring all other issues one might have is that there is a large and unknown number of fedi instances. no fedi instance is aware of every single other instance nor would that be desired behavior as far as i understand.
in order for this to work whatever server youre on would have to make all other servers aware of your profile. this is not feasible. and then whatever instance you do something on would have to synchronize that across every instance. this isnt even to speak of different server software and the different features they provide. how would a mastodon instance version of my profile account for my firefish emote reactions? what instance has authority over banning an account?
what youre asking for necessitates a centralized system. its fundamentally incompatible with how fedi works on a technical level.
an alternative is to simply use different accounts for different things and link them as appropriate.