git-sync looks like it does at you’re looking for.

Oh, nice. Saving the link’s content is exactly the feature I’ve been looking for.

I think you’re looking for something like this: https://github.com/meeb/bandcampsync

Codeberg isn’t an entirely new forge. It’s just a well-known gitea/forgejo instance. Sourcehut would probably be a better example.

From what I’ve read you need it for Bittorrent or at least the chance of failed downloads is higher without it.

Definitely worth it IMO. There’s a lot of parts involved in a Matrix setup and this playbook handles them all for you. Just make sure to have a look at the changelog whenever you update your installation. If there are any changes that require manual steps, it usually explains those steps quite well.

I think Stash should cover most of your points, except for the page-less scroll: https://github.com/stashapp/stash The only other software I know for this is Porn Vault: https://gitlab.com/porn-vault/porn-vault

lemmy.world is one of the biggest instances, so I wouldn’t be surprised if the server struggles from time to time. Because of how the fediverse works, switching between local, all and subscribed doesn’t make a difference. You still access the non-local content through lemmy.world because it’s cached there.