VoyceBook Blog

Ideas worth writing down.

Product updates, engineering deep-dives, GST guides, and business lessons from building VoyceBook.

Featured

ProductJul 10, 2026·5 min read

Why VoyceBook is a Document OS, not just an invoicing tool

Most invoicing tools stop at the invoice. VoyceBook starts there and goes all the way back to the first conversation — here's why that matters for Indian SMBs.

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Akash Kore
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EngineeringJul 3, 2026·8 min read

How we built revenue forecasting with Holt's double exponential smoothing

We needed a forecasting algorithm that works on sparse, noisy SMB data without training a model. Here's why Holt's method won and how we tuned it.

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Rahul Verma
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GST & ComplianceJun 24, 2026·6 min read

GST for Indian SMBs: a plain-English guide to CGST, SGST, and IGST

Inter-state or intra-state? Which tax rate? We break down the GST rules that every Indian business owner needs to know — without the jargon.

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Priya Sharma
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ProductJun 16, 2026·4 min read

Introducing customer health scores — know which accounts need attention

We track overdue invoices, payment history, and recency to give every customer a 0–100 health score. Here's how the algorithm works.

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Akash Kore
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EngineeringJun 5, 2026·11 min read

Building a multi-tenant SaaS with Spring Boot and ThreadLocal isolation

How we isolate tenant data using TenantContext, Flyway migrations, and row-level security — without sacrificing developer ergonomics.

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Rahul Verma
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BusinessMay 28, 2026·5 min read

From proposal to payment in one connected workflow

Walk through the VoyceBook document graph: how a proposal becomes a contract, a contract becomes an invoice, and how every step is remembered.

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Priya Sharma
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