I built Raya Cash – A solo project creating a virtual bank in Argentina
I spent the last year building Raya Cash, a virtual bank designed specifically for the Argentine market. As a solo founder, I handled everything—from coding the platform to integrating features that cater to both local currency (ARS) and crypto enthusiasts. The goal? To give users in Argentina a secure and efficient way to manage their money, bridging the gap between traditional banking and decentralized finance. Would love your feedback or any questions!
Does the same job
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Hey everyone! I'm Rob and I want to share what I've built - a solid ledger behind simple API: https://decimals.app The ledger is a key piece of any financial system and is easy to get the design wrong, resulting in troubles for making sure money movements are adding up. I took a lot of inspiration from good designs from Square, Uber, and others for the scalability and security aspects. And on the usability side, I applied many concepts from the Ledger CLI, making it very easy to use. I'm really happy I get to show this to you all, thank you for reading about it! Please let me know…
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I've been using this daily for 4 months and figured others might find it useful. This is my first open source project so would love any feedback. Ray connects to your bank via Plaid, stores everything in an encrypted local SQLite database, and lets you ask questions about your finances in natural language. No cloud, no account, your data is stored on your machine. Before anything reaches the LLM, all PII is stripped — your name, companies, transaction details are redacted and replaced with tokens, then rehydrated locally in the response. The AI never sees who you are.
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