Instead of trusting a third party to protect your credentials, you're trusting an auditable, open source platform. I cant see myself using it for anything important, but I understand the draw.
Any password manager that does the encryption stuff in offline, open-source software and puts it on any untrusted storage provides that, with the difference that it does not require making your encrypted copy public for all eternity, exposing it to unnecessary risk of compromise down the road.
There are risks either way. There have been plenty of vulnerabilities in popular password managers (some that also apply to this blockchain model). But I think your AES encrypted password being publically visible is a pretty low risk, compared to a PW manager being breached, having a flaw in the client, their being coerced by government, etc
How is this project any less at risk for those client-side implementation risks you mention? Basically, why should this nascent project be trusted over, say, KeePass?
Hi Andy! Wanted to let you know that I appreciate the niche you're exploring. Pledged on patreon. Keep up the good work. Please do consider the comments suggesting a periodic video / podcast/ etc., that would allow you to share your process. Thanks!