no

there is no “use case” here

not much beyond “look at what other apps you’re trying to interoperate with output and try to reverse engineer your way through”. reading through the sources of other apps may be a good idea.

some links that may get you started, picked from https://socialhub.activitypub.rocks/t/guide-for-new-activitypub-implementers/479 :

• https://flak.tedunangst.com/post/ActivityPub-as-it-has-been-understood
• https://www.w3.org/community/reports/socialcg/CG-FINAL-apwf-20240608/
• https://swicg.github.io/activitypub-http-signature/
• https://seb.jambor.dev/posts/understanding-activitypub/
• https://tinysubversions.com/notes/reading-activitypub/

and depending on which ecosystem you’re targeting:

• https://docs.joinmastodon.org/spec/activitypub/
• https://join-lemmy.org/docs/contributors/05-federation.html

counter intuitively, avoid reading the specs if you’re looking to federate with existing software. the official specs are… extremely lacking beyond giving you the bullets to shoot yourself in the foot with (half of what little it defines goes unused in the real world, important things like “how do i know this activity is sent by the person it claims to be” is completely undefined (hint: everyone has more or less settled on http signatures).

once you get something federating, you can then look in the specs in an attempt to learn the concepts in depth, but writing code following the specs will result in code that simply won’t federate.

tasty tasty lava, yim yum

finally, shorts for women

i just wanted an excuse to share open source perfume yea go take a shower STINKY HEADS!!!

the difficult part isn’t getting in the shower the difficult part is getting out

mnmmgrh worm worter

open source perfume, cuz y’all stink

his ass is NOT reading!!! the words are upside down!

Firefox/mypal bundles its own SSL stack

she’s not narcing she’s asking nano why she doesn’t have any for her

me when I go swimming

!meow_irl@sopuli.xyz can use more silly funny cats

I’m trying but my collection is limited

he’s just packaging (for the fleas)

don’t really care either way about the ai thing but deffo ban moldy posts. we already have !funny@lemmy.world or !memes@lemmy.world for that kinda stuff

the 0.19 implementation is so half-assed I genuinely think the Lemmy devs just don’t want that functionality but expected quite a lot of backlash if they outright said as much, so they decided to implement something that ticks the box in the “wanted features” list without having any effect

afaik it only blocks communities and explicitly lets users from blocked instances through

all of them that aren’t dedicated to political discussion

see https://lemmy.blahaj.zone/comment/5790630

doesn’t change my overall point /shrug

the thought behind banning it and explicitly allowing “US acceptable zones” is so we can shove all US discussions there and let people talk other things in peace, and those who want to talk US politics can go and mess shit up there, far away from the rest of us who just want to chill and be silly in peace :3

doing it on a “case by case basis” does not help when the intent behind the hypothetical rule is to enact a Lemmy wide change in the atmosphere of the platform

.world is unique in that because of its size it has kinda ended up being “Lemmy” to most people. I very much doubt the people posting porn on .world care about instances and federation and just treat .world as a centralized site