It is technically possible to install paru through Cargo which you can get just from pacman by installing rust and you can install pikaur through PIP. Both can mess with your systems packages though so I do not recommend it.
And even with that subscription, you still get locked out of any post or subreddit that is marked NSFW, which will now be even more since subreddits are still protesting the changes.
Basically, we now have a local, frozen in time copy of the old beehaw communities on this instance, that will not sync with any other instance anymore since the main instance of that community is no longer talking to this instance. You can still make posts and comments on there, but the only people seeing them will be other lemmy.world users.
As this instance just got defederated from beehaw.org, I would definitely say so since that’s a massive pain, creating multiple accounts for one service just because some other members posted spam is really annoying.
Good Bot!