Prabin Bhusal
Founder, Numeralens · Software EngineerMaker
Software engineer in Nepal working on accounting and ERP systems. I build Numeralens: drop-in financial reporting for SaaS (P&L, balance sheet, cash flow, drill-down to every ledger entry) as full Next.js source, with an AI CFO that never invents a number. Ask me anything about building finance features into a product.
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Commented on Numeralens · Nov 3, 2026
Good question. Short answer: it doesn't convert. Numeralens reports in one reporting currency (Settings → Currency & number format), and the adapter contract expects every amount already translated into it; the data-model guide says it in one line, "Money is a number in the reporting currency." Rates, rate dates and FX gain/loss postings stay in the accounting backend that feeds it, so the front end never holds a second set of rates that could disagree with the books. The filters do carry a currency dimension (next to company, branch, department and account) and pass it through to your API, so a backend that keeps the original currency on each entry can serve the ledger sliced per currency. One limit the code states rather than hides: the integer-cent maths is a fixed two-decimal model, so zero-decimal currencies like JPY aren't supported yet.
Commented on Numeralens · Oct 20, 2026
Hi DevHunt 👋 I'm Prabin, a solo developer from Nepal who works on accounting and ERP systems. Every product that touches money eventually gets the same request: "Can we see a P&L? Cash flow? Who owes us what?" Building that properly takes months: statements that reconcile to the cent, drill-down from any figure to the ledger lines behind it, permissions enforced on the server. Numeralens is that module, finished, as Next.js + TypeScript source with a one-time licence (no per-user fees, no licence server). What developers usually ask about: - Your data: one typed DataAdapter (23 methods), or point it at a REST URL in Settings - The AI: a deterministic engine computes every figure; a model answer containing a figure it didn't supply is rejected, and everything works with no API key - Security: every API route is checked per role on the server; the tests try every route x role pair (174 checks) Demo, no signup (pick a role): https://demo.numeralens.com Founding price for the first 30 buyers: $149 Standard / $479 Extended. What would you need to see before putting this inside your product?