Kosh: A Self-Hosted Personal Finance App
Manage your financial data without trusting third parties.
1What is Kosh?
Kosh is a self-hosted personal finance app that allows users to manage their financial data without relying on third-party services. It is designed for basic financial operations like accounts, transactions, budgets, and reports. It's an ideal solution for users who prioritize data privacy.
2Key Features
Kosh offers basic financial management tools such as accounts, transactions, transfers, categories, and tags. Advanced features include CSV imports, budgets, bills, and recurring transactions. It uses exact integer money math and avoids invented exchange rates. Optional AI-assisted questions via Google Gemini are also available.
3Technical Infrastructure
Kosh is a Next.js-based web app that uses a PostgreSQL database. It works with Drizzle schema and migrations. It can be easily deployed with Docker and Docker Compose. Your data stays only in your PostgreSQL database and is not sent to third-party servers. It uses AES-256-GCM encryption for security.
4Installation and Development
To install Kosh, you need Node.js 22.13, pnpm 11, and PostgreSQL 16. For local development, follow simple steps: create the .env file, install dependencies, start the database, and run the app. You can test it immediately with the demo account.
5Security and Privacy
Kosh encrypts your financial data and ensures only you have access. Database access is a secure administrative boundary. AI integration and external MCP access are optional and disabled by default. All security measures are in place for data privacy.
6Why Choose Kosh?
Kosh is an excellent choice for those who want to keep their financial data under control. Its self-hosted nature ensures your data stays only on your server. With advanced features and strong security measures, it simplifies personal finance management. It's ideal for those concerned about data privacy.
Original article: Hacker News: Show HN — Kosh: Kendi Sunucunuzda Çalışan Kişisel Finans Uygulaması