Wallet
There is a wallet view in the OpenFiat web application,
openfiat-app (/wallet), and
it still renders demo data — the app is being moved onto live data one route
at a time, and this is not one of the routes that has moved.
A standalone cross-platform wallet (Android, iOS, Linux, macOS, Windows, Web)
remains deferred. The placeholder for it in openfiat-apps was never
scaffolded, and that repository is no longer under active development.
Until then, a node never holds or signs anything for you: every mutation is a payload your own keypair signs locally and submits — see method naming and either SDK for the signing primitive.