NK Finance: Self-hosted personal finance tracker, no bank login

Hey Product Hunt 👋 Maker here. I built NK Finance because I kept bouncing off the same wall with every budgeting app I tried: to get the full picture (net worth, not just "spending this month"), they all wanted my actual bank login. I didn't want to hand that over to another company, so I ended up building my own tracker over the last few months. A few things that might be relevant if you're evaluating it: - It's genuinely self-hosted for the Cloud Edition — you deploy it to your own free-tier Firebase project, so your financial data lives in infrastructure YOU control. I never see it, because I have no server to see it on. - There's a Local Edition with zero setup — no account, no Firebase, runs entirely in your browser, data never leaves your device. Good if you want the simplest possible trust model. - It's a one-time purchase (€3.99–€29.99 depending on edition), not a subscription — that was a deliberate choice, not a "coming later" promise. Happy to answer anything — architecture decisions, why Firebase instead of a fully self-hosted DB, roadmap, whatever. And if you use PH20 at checkout, it's 20% off today.