this post was submitted on 11 Sep 2024
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I just signed up for Matrix because you mentioned it.
I installed the Element front end, because that seems to be the most popular.
It looks like IRC, which is fine if that’s all you need.
It also appears that anything beyond text has to be hotlinked, which is understandable, given that the amount of data transmitted for redundancy between home servers is exponential with the number of home servers.
Really very similar to Lemmy, where the identity of each group is tied to a particular server, e.g. lemmy has [email protected] but Matrix has #anime:matrix.org
So what happens if matrix.org goes away or decides the server admin wants to be hostile to #anime?
A matrix room can have multiple identities/adresses set by the room admin. E.g. the admin of !anime:matrix.org could add another adress for the same room on !anime:myanime.instance. Because the room is replicated on all other participating servers, this would let the room continue to exist on the network (besides all matrix.org users not being able to access it).
Matrix does have a single "room id" per room, which looks like it gives the original creating home server more rights, which it does not. E.g. !ehXvUhWNASUkSLvAGP:matrix.org
Any server admin does not have any more rights over a room than another server admin. They can ban the room for their local users, but this does not stop federation as a whole.
[1] https://github.com/element-hq/element-meta/issues/419
[2] https://app.element.io/#/room/#synapse:matrix.org/$htJmba92wLTP9AoFg4eEWi9IXpgwvXr6G9Sa-kBsNNs
[3] https://matrix-org.github.io/synapse/latest/admin_api/rooms.html#delete-room-api
Matrix allows for media to be hotlinked, but it can also be replicated across servers.
I.e. if I send an image in a room and look at the source (available on many web clients), the image url looks like the following
"url": "mxc://matrix.org/qGgUKuZuHcRsWAhSfqKnmtiX". The actual image (and preview) then gets fetched by your server from my server [4], and then gets send to your client.It's important to note that a server isn't required to download all media. If a user does not read a room, it might not download the media from another server, until the user actually wants to view it (or rather that part of the room history). Or a server admin might clean up the media store to free up space.
[4] https://matrix.org/docs/spec-guides/authed-media-servers/
@[email protected]
thats a possibility, that is why either you sign up with a provider you trust or run your own server. that is the appeal of distributed network.
Same thing that happens when a Lemmy instance goes away, right?