I am using booklore for the same reason as you and it works very well. The only feature I’m missing is highlighting, but I can live without it.

I was not very clear, sorry about that: sterling supports accounts and oicd logins.

As someone who have been using both, you don’t need an account to use bentopdf. All the data is processed locally, making it excellent for a single user scenario. I drink Sterling has a very handy omni-tool, but I dare say it’s a matter of preference.

I go with bento where I can, and use sterling as a fallback.

I don’t remember if it was next or owncloud, but one of them was making a rewrite in go. I’m I’m no rush to jump into it, but keep a eye on it.