The rewind crypto, PMMR-index node reads, and the scanner are
implemented + tested (unit + end-to-end). Update README status, the
build-order checklist (rewind/reads/scanner/reorg done; live-node smoke
+ backend proxy remain), the main.rs module status, and the startup log.
The review's premise (sqlx::Any breaks on SQLite $N placeholders) is
wrong for sqlx 0.7: SQLite accepts $N numbered params and binds them
positionally, including reused placeholders. A probe test applies the
real migration + exercises set_cursor's reused-$N upsert, insert_output
(quoted "commit", bool), coinbase-maturity reads, and mark_spent against
SQLite — all pass. The only true incompatibility was DEFAULT now(),
changed to the portable DEFAULT CURRENT_TIMESTAMP. Schema + queries now
run unchanged on both backends. Updated the stale dialect notes.
Make the scaffold standalone and publish-ready:
- Rewrite code + README references to the originating backend as a generic
"wallet backend" so the service reads as a reusable, run-anywhere LWS.
- Add the MIT LICENSE file (matches Cargo.toml) and a short provenance note.
- Add repository/readme/keywords/categories metadata to Cargo.toml.
A standalone, self-hostable Grin light-wallet-server mirroring the Monero LWS:
register a view/rewind credential, run a background chain scanner, rewind outputs
against registered keys, store per-account matches in a DB, and serve balance /
outputs / broadcast / height fast (vs the current on-demand stateless scan proxy).
This is the scaffold — README (architecture + HTTP surface + DB schema + how a
wallet backend proxies to it), Cargo skeleton, migrations sketch, and route/scanner
stubs. Public-clean: no operator-specific infra, hosts, or secrets.
jwinterm