Lemmy and Mastodon have somewhat different purposes and integration between them is never going to be perfect. :/ Ultimately you’ll always get better results if you post to the platform you mainly want to target; posts sometimes being visible on the other one too is a side effect.

What would probably be useful for purposes like yours is to have some kind of software that allows the creation of arbitrary or near-arbitrary ActivityPub objects with arbitrary audiences which can include one’s followers or any number of groups. I don’t know how feasible this is or whether someone has already done it.

A few months ago I saw a post on a relatively large Lemmy community that had clearly been intended for the author’s Mastodon followers, but they tagged that Lemmy community (it had a name relevant to the content) apparently not knowing this would publish it to Lemmy. As I recall, this got >100 upvotes on Lemmy, but the Lemmy community’s mods deleted that post after a few hours. (Maybe some readers of this saw it too, it was to a “Europe” community and its content was something like “musKKK get the fuck out of EU politics”.)

!kde@lemmy.kde.social is a community that gets a lot of posts like that, try looking at that.

Lemmy posts that are federated to Mastodon appear there with the community name as a hashtag. You can view your Lemmy profile from your Mastodon instance and see what got federated to that instance and how it appears there.

mentioning a Lemmy community on Mastodon causes the Mastodon post to appear as a new Lemmy thread on that community AFAIK

There is an open standard for logging into websites with other websites’ credentials, it is called OpenID and long predates ActivityPub (and is independent of it).

Your specific problem is solved, but just for people reading this thread who may be confused about some concepts:

Your instance of Lemmy or Mastodon, whichever it may be, is just one website that serves as a Reddit or Twitter clone respectively. There isn’t a lot of difference between one single instance of Lemmy or Mastodon on the one hand, and Reddit or Twitter on the other. Just like you need to register and log in on Reddit or Twitter if you want to interact there, you need to do the same on any instance of Lemmy or Mastodon you want to interact on.

So what is the concept of federation then? It doesn’t mean you can log into one website with the credentials of another website. All that federation means is that the website downloads some of its data (posts, comments, status updates, whatever) from other websites running the same or compatible software, instead of getting all of it from its own users (like Reddit and Twitter do).

Kinda in Java, you can call System.out.println or you can call System.out.print and explicitly write the newline.

Apart from that, there is literally nothing unusual about occasional border checks even at intra-Schengen borders. I completely believe that buses are sometimes pulled over when entering Germany or any other country, there is nothing newsworthy about it.

great, now I’m subscribed to 4 communities called “fediverse” :D (the one you linked to and the ones on lemmy.ml, lemmy.world and lemmy.zip)

“Software for airplanes” is a broad term. If I ever get into a position to make software for airplanes, it’s probably not going to be things that can crash the plane. The entertainment system is still software for airplanes.

Du meinst, dass man sich mit einem Login für beides einloggen kann? Soweit ich weiß, nicht möglich.

Was meinst du mit “verknüpfen”? Du kannst in dein Profil die Namen deiner anderen Konten irgendwo anders im Internet reinschreiben, was genau ist dein erwünschtes Ergebnis?

I see, thanks. Will look into that.

I’ve had this thought before, but have also wondered whether it’s even possible to implement this using ActivityPub, considering that a wiki inherently requires having the same state everywhere, but ActivityPub allows instances to ban and defederate how they like (thus become desynchronized from each other).

When I was new to Mastodon, I followed everyone who might maybe have something interesting to say (e.g. open source projects that I’ve never used but found somewhat interesting).

Right now I have 43 tabs open on my phone most of which are links from Mastodon I haven’t yet gotten around to reading… I think you can see why nowadays I tend to unfollow more things than I newly follow.

You want to join an mbin or piefed instance, they allow both microblogging and posting to lemmy communities.

you probably google for yahoo on bing amirite

I remember reading (though I can’t find the source anymore) that Mastodon “favorites” and Lemmy upvotes are the same thing, but that it is not possible to downvote from Mastodon.

Not a new phenomenon in human nature or on the Internet, by itself. On some wikis (e.g. en.wikipedia.org) there used to be extensive lists of “notorious vandals”, then people realized that this only encouraged them further, now this is more limited, but there still is https://en.wikipedia.org/wiki/Wikipedia:Long-term_abuse

ffs stop feeding trolls and spammers