Well, the stopgap solution for this scenario is quite simple: Keepassxc + Keepassxc Browser Extension + Cloud Storage of your choice. OPAQUE is not covered but

Well, the stopgap solution for this scenario is quite simple: Keepassxc + Keepassxc Browser Extension + Cloud Storage of your choice. OPAQUE is not covered but I'd argue that that would puttoo much of a restraint on the storage layer. Both Keepassxc[0] and the browser extension are FOSS and the cloud storage may be FOSS, like Nextcloud or "just" whatever works for you rn (Google Drive, Seafile, ...). On android Keepassdx[2] (with autofill) can help too. The only major pitfalls of this model is cross-device sync, i.e., you edit the file on device A while saving a change on B etc. Though this isn't really a problem if you (a) are using it alone or (b) make sure you keep backups. In case they do conflict it can merge multiple versions. [1]: https://keepassxc.org/ https://keepassxc.org/ [2]: https://www.keepassdx.com/ https://www.keepassdx.com/