Foundation
Years of receipts, finally findable.
Capture proof, connect it to a Tangent, and settle shared costs without rebuilding the story later.
What is working today
The deterministic core
- Deterministic money arithmetic and shared-expense balances
- Extraction validators for totals, dates and card suffixes
- Private storage adapter with path-traversal protection
- Environment validation and the confidence policy
What comes next
Phase 1 — accounts and Tangents
Google sign-in, the database schema and the authorization policies, with a hard exit criterion: two users cannot read each other’s records, and a viewer cannot change a shared Tangent.
See the design system