If, like me, you’ve been living under a rock regarding Passkeys, I think I finally figured out that:
1. You can keep using hardware security keys, but you may need a newer version (my Yubikey Nano is too old) and there are model-specific limits regarding how many sites you can store.
2. Aside from the hardware security key route, it seems like KeepassXC + browser plugin is the most flexible / secure option for folks who want full control over their password store. For iOS, there is Keepassium.
You can even put your KeepassXC database on cloud storage to get the benefits of cloud sync without the vendor lock-in.
@zekjur this is what I do! KeepassXC and Dropbox. Then android app, and some Linux configuration as well. I also sponsor @keepassxc !