Uh, do you just bookmark this?
🐀 A link aggregator and forum for the fediverse. Contribute to LemmyNet/lemmy development by creating an account on GitHub.
github.com
How do you start with it and get into it?
No, that's the software. Lemmy is federated. If you want to interact with people, you have to join an instance. Lemmy.world is a big general purpose instance.
lemmy.world
There's numerous other instances though, with different content, philosophies, and moderation standards. Every instance can interact with each other unless they choose not to federate, so it's relatively seamless to browse and post content to different instances.
Think of it like email. Gmail, yahoo, and whatever MS is calling their mail these days can all talk to each other, but you only need an account with one of them. If gmail didn't like yahoo for whatever reason(maybe it turned into a huge spam farm), they could block yahoo accounts. That would be like defederating with them.
The content on lemmy is much less than reddit. Maybe it'll really turn into something, maybe not. I like that nobody owns it, and if the admin of your instance goes off the rails, you can join another instance. It isn't a monolith. If reddit does something you don't like, you either deal with it, or do without. There's only one reddit, but there's numerous lemmies. Also, no ads or monetization. You can and should donate money if you get value from it, but nobody is making you, and you aren't being tracked for monetization purposes.
edit:
you can also interact with lemmy from a mastodon account, which is what I do. It's a little hacky, but it works. They both use the activitypub framework. There's other reddit-like software also. kbin is pretty nifty. It's almost a mastodon/lemmy hybrid. All the various activitypub solutions can interact with each other to one extent or another. Lemmy is currently the frontrunner as the reddit replacement.
edit2:
en.wikipedia.org