A password manager I built to actually understand client-side cryptography — key derivation, encryption at rest, and the zero-knowledge model where the server never sees a plaintext secret.
The point was never to compete with 1Password. It was to sit with the threat model until it made sense: what the server can and can’t be trusted with, where keys live, and how a single bad assumption quietly breaks the whole thing. This is the project where my security instincts stopped being theoretical.