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fintech

The storage for general purpose public information relating to the Cryptocurrency Advocate and its online representation.

Open-Source Business Management Platform (ERP/CRM/HRM)

Structured market intelligence for Indian financial events, macro context, and sector impact.

Portfolio optimization and analytics API (Spring Boot)

Next-generation core banking system (Project FUJI) of Kai Mirai Bank, a fictional Japanese regional bank. A single demo that shows plan → develop → secure → deploy → audit with GitLab Ultimate.

甲斐みらい銀行 (架空の地銀) 次期勘定系 Project FUJI。GitLab Ultimate で計画→開発→セキュリティ→デプロイ→監査を 1 本で見せるデモ。

TrustTip is a cross-platform, audit-grade tipping and attribution system that links every digital tip to its exact source content, reason, and structured financial record. It transforms informal online support into verifiable, exportable, and compliance-ready data for creators, supporters, and platforms, enabling transparent tracking of digital value across the internet. https://roxanneardary.com/trusttip/

Internal Credit is an AI-powered, modular financial platform that enables users to borrow against their own savings while continuing to earn returns on their deposited capital. Designed around self-collateralized lending, the platform allows account holders to access up to 70% of their account value, receive AI-guided financial insights, and preserve long-term wealth through a flexible, secure, and extensible banking architecture. https://roxanneardary.com/internal-credit/

Solvra is an open-source financial modeling engine designed to simulate loans under a controlled, transparent amortization system. It applies a capped-interest rule based on a 15-year maximum effective interest window and redistributes total interest evenly across the full loan term, producing predictable, linear payment structures for scenario analysis, affordability testing, and structured financial planning. https://roxanneardary.com/solvra/

Minimal event-driven trading-bot skeleton in pure Python — strategy, risk manager, and broker as pluggable components.

Credential-free reference examples for the Schwab Trader API — OAuth2 login flow, market-data quotes, and bracket order payloads.

Dependency-free technical-analysis utilities in pure Python — ATR, VWAP, RSI and order-flow, fully typed and unit-tested.

OrgBudget is a modular standard for organizational budgeting that enables departments to manage budgets independently while maintaining centralized reconciliation, transparent reporting, financial accountability, and organization-wide oversight. It supports AI-assisted planning, forecasting, analysis, and reporting while keeping financial decisions under human authority. https://roxanneardary.com/orgbudget/

BNPL platform landing rebuilt from a 2023 Gulp/SCSS archive onto Next.js 16, React 19, TypeScript and Feature-Sliced Design.

Backend engineering, AI infrastructure, real-time systems and blockchain development.

FinAxis is an AI and LLM-ready regulatory intelligence specification designed to help lending businesses understand federal, state, and local legal requirements. It provides modular guidance for lending products, licensing, disclosures, forms, pricing, underwriting, compliance, servicing, collections, regulatory changes, and personal and business lending. https://roxanneardary.com/finaxis/

Paystead is a locally hosted financial management platform that brings multiple bank accounts, bills, payments, statements, checks, and financial records into one unified interface. AI assists with organizing information and carrying out authorized financial tasks while keeping the user in control of approvals, permissions, and financial decisions. https://roxanneardary.com/paystead/

Offline PDF to XLSX/CSV/JSON converter for Yandex Bank statements (deposit Сейв + card account). Конвертер банковских выписок Яндекс Банка из PDF в Excel — всё локально.

Offline PDF to XLSX/CSV/JSON converter for Ozon Bank (ОЗОН Банк) statements. Конвертер банковских выписок Озон Банка из PDF в Excel — всё локально.

BalanceForward is an open source deterministic financing specification that helps businesses design sustainable debt-refinancing solutions based on a borrower's income, cost of living, repayment capacity, qualifying debt, and collateral. With a fixed 5% interest rate, maximum 50% collateral advance rate, and 20-year maximum term, BalanceForward provides a modular framework for predictable, transparent, and borrower-centered financing. https://roxanneardary.com/balanceforward/