The instructions change if you’re using flatpak. I was only able to get it to work with a manual import

Commenting to vouch for lcs. It works well and isn’t resource heavy

Adding on to the comment by @RoundSparrow@lemmy.ml, Lemmy Community Seeder can help with populating your instance.

Isn’t kbin compatible with both Lemmy and Mastodon? I see tons of Mastodon content in the Microblog tab currently

Check out lemmy community seeder