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ADR-010: Dual Database Driver Abstraction Status: SUPERSEDED by ADR-014: PostgreSQL-Only Architecture (2026-03-03) Date: 2026-02-21 Deciders: John (AI Director) Category: Database Context Per ADR-006, Drop uses SQLite for development and PostgreSQL for produc...

ADR-011: Expo SDK 54 for Mobile App Status: Accepted Date: 2026-02-21 Deciders: John (AI Director), Alem (CEO) Category: Mobile Context Drop requires a mobile app for iOS and Android. The mobile app is the primary interface for remittance and QR payments -- u...

ADR-012: AWS App Runner for Deployment Status: Accepted Date: 2026-02-21 Deciders: John (AI Director), Alem (CEO) Category: Infrastructure Context Drop needs a deployment target for its backend services (Next.js BFF and Hono mobile API). The deployment platfo...

BankID OIDC Integration Version: 1.0 Date: 2026-02-21 Author: Banking Architecture Team Status: Approved Applies to: Drop — Authentication via Norwegian BankID 1. Overview Drop uses BankID OIDC (OpenID Connect) as its sole authentication method. BankID provid...

Open Banking Integration: AISP & PISP Version: 1.0 Date: 2026-02-21 Author: Banking Architecture Team Status: Approved Applies to: Drop — PSD2 Pass-Through Model 1. Overview Drop operates as a Third Party Provider (TPP) under PSD2, using two regulated service...

Payment Processing Architecture Version: 1.0 Date: 2026-02-21 Author: Banking Architecture Team Status: Approved Applies to: Drop — Payment Initiation & Settlement 1. Overview Drop processes two types of payments, both initiated via PISP (Payment Initiation S...

Sentry Observability Integration Error tracking, performance monitoring, alerting, and SLO/SLI definitions for the Drop fintech platform. Covers Sentry SDK integration, data scrubbing, Slack alerting, structured logging, and release tracking. Observability ...

Sumsub KYC/AML Integration Identity verification architecture for the Drop fintech platform using Sumsub as the KYC/AML provider. Covers webhook architecture, applicant lifecycle, document check types, risk level definitions, SDK integration for web and mobil...

Database Design Version: 1.0 Date: 2026-02-21 Status: Approved Owner: Database Architect Design Philosophy Drop's database schema is designed around three principles: Simplicity over abstraction. 19 tables for a well-scoped fintech app. No generic "entities"...

Migration Strategy: SQLite to PostgreSQL STATUS: COMPLETED (2026-03-03) This document describes the completed migration from the old dual-driver architecture to PostgreSQL-only. The migration is done. Current architecture: PostgreSQL 16 (all environments), Dr...

Data Lifecycle Management Version: 1.0 Date: 2026-02-21 Status: Approved Owner: Database Architect Overview Drop processes personal and financial data subject to multiple overlapping regulatory frameworks. This document defines retention periods, archival str...

Audit Architecture Version: 1.0 Date: 2026-02-21 Status: Approved Owner: Database Architect Overview Drop's audit system records all significant user actions for compliance (PSD2, GDPR, AML) and security monitoring. The audit_log table is the central audit st...

Indexing Strategy Version: 1.0 Date: 2026-02-21 Status: Approved Owner: Database Architect Overview Drop's indexing strategy is designed around actual user flow query patterns. Every index exists because a specific query needs it. No speculative indexes. Curr...

Figma vs Build Validation — 2026-02-21 Critical Fix: Sidebar Dark → White ElementBefore (BUG)After (FIXED)Figma Sidebar background#111113 (black)#FFFFFF (white)#FFFFFF Sidebar text#FAFAFA (white)#111113 (dark)#111113 Sidebar hover#1F1F23 (dark)#F5F5F5 (light...

Bilko Documentation Index Last updated: 2026-02-20 Project ID: bbd77cc0 Status: Backend SPECIFICATION (not implemented) Pipeline Status: 7/8 gates PASS — See Validation Report Key Documents VALIDATION REPORT — Gate validation results (2026-02-20) PIPELINE ...

UNSA Tender — Naučnoistraživačka Oprema Overview Client: Univerzitet u Sarajevu (UNSA) Subject: Razvoj softvera za jedinstveni registar naučnoistraživačke opreme i infrastrukture Procedure Number: 999-1-2-27/26 (otvoreni postupak) Value: 65,000 BAM (~€33,000) ...

merdzanovic.ba — Overview MC Task: #1795 Status: In Progress — Design Phase Client: Asmir Merdžanović ([email protected]) Type: Internal (SnowIT partner project) Domain: merdzanovic.ba About Politički lični sajt za Asmira Merdžanovića — vijećnik u OV Hadžići, ...

AI Design Tool Shootout — MC #1794 Linked to: merdzanovic.ba (#1795) Status: In Progress Cilj: Testirati 4 AI design alata na istom briefu i ocijeniti koji daje najbolji rezultat za multi-page politički sajt. Alati Tool Cijena Output Status v0.dev $20/m...