But is the vision to be able to “DM” with users on instances of mastodon, Lemmy, etc?? (anything that supports activity pub)
But is the vision to be able to “DM” with users on instances of mastodon, Lemmy, etc?? (anything that supports activity pub)
There are many legitimate reasons why someone might not, but if they've not thought through them and whether or not they could achieve the same with extensions to ActivityPub I'm instantly sceptical.
I would love to see other federated services running on home CE devices, but I don't see this happening with the execution requirements of services like mastodon or matrix. While those services are great and I use them, I think they lend themselves more to group hosting vs personal hosting.
Basically ActivityPub sets out a very basic skeleton for passing messages ("activities") between actors designated by URI's. Those messages must be JSON and has a few very basic requirements, such as having a "type". E.g. "Announce" is a type that corresponds to "boost" or "retweet", "Create" is a type that means you're creating another object such as a "Note" (toot/tweet) which follows the same general structure.
Those messages can be addressed to specific other URI's representing audiences with to/cc fields. When you add that to your outbox, you or your instance also need to post them to your followers instances.
So as long as you can receive POST's w/JSON, and return a list of JSON versions of messages, you have the basics. The JSON in ActivityPub is verbose but it's not very hard to generate, so bridging is likely doable.
[1] https://webfinger.net/lookup/?resource=vidar%40galaxybound.c...
[2] https://m.galaxybound.com/users/vidar but needs Accept: header: curl -H "Accept: application/activity+json" https://m.galaxybound.com/users/vidar | jq .