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Guides, tools, and references worth keeping.

Practical resources, guides, and references worth bookmarking.

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Reference

India's 2026 GST Changes: A Founder's Compliance Checklist

Mandatory e-invoicing now applies at a ₹5 crore turnover threshold, invoice numbering resets every April, and ITC matching just got stricter. Here's what changed and what to check.

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Chargebacks & Disputes: The Glossary and Response Checklist for Merchants

A glossary and response checklist covering chargeback reason codes, representment, and the evidence merchants need to fight disputes.

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Reference

Payment Tokenization Explained: Network Tokens vs. PCI Vault Tokens

A guide to how payment tokenization works, the difference between network tokens and PCI vault tokens, and how each reduces compliance scope.

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Reference

The Prompt Engineering Guide for Business Use Cases

A practical prompt engineering guide covering few-shot, chain-of-thought, and role prompting for real business workflows in 2026.

An open dictionary page
Reference

Data Privacy Regulations Glossary: GDPR, India's DPDP Act & CCPA

A comparative glossary of GDPR, India's DPDP Act/Rules 2025, and CCPA/CPRA — covering scope, key roles, and penalty structures.

An open dictionary page
Reference

The SaaS Metrics Glossary: MRR, Churn, LTV, CAC & NRR Defined

A precise glossary of core SaaS metrics — MRR, churn, LTV, CAC, NRR — with the 2026 healthy-range benchmarks founders should know.

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Reference

The FinOps Checklist: Cutting Cloud Costs Without Slowing Engineering Down

A practical FinOps checklist for startups covering tagging, rightsizing, Reserved Instances vs. Savings Plans, and spot instances.

An open dictionary page
Reference

Startup Fundraising Glossary: SAFEs, Term Sheets & Cap Tables Explained

A founder's glossary covering SAFEs, convertible notes, valuation caps, discount rates, and how each shows up on the cap table.

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Reference

API Security Best Practices for Fintech Teams: The OWASP-Aligned Guide

A practical guide to securing fintech APIs against the OWASP API Security Top 10, starting with authorization flaws and inventory gaps.

An open dictionary page
Reference

The KYC/AML Glossary Every Fintech Founder Needs

A founder-friendly glossary of the core Know Your Customer and Anti-Money Laundering terms that shape how fintechs onboard and monitor users.

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Reference

PCI DSS 4.0.1 Compliance Checklist for Ecommerce Businesses

A practical checklist covering the PCI DSS 4.0.1 requirements ecommerce merchants and their payment pages need to satisfy now that all future-dated controls are enforced.

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Reference

5 AI Trends Shaping Our World in 2026

From autonomous agents to on-device edge AI, here are the five shifts defining AI's trajectory in 2026 — and the $826.7 billion market number behind them.

An open dictionary page
Reference

Embedded Finance 101: A Founder's Glossary and Market-Size Cheat Sheet

Market-size estimates for embedded finance in 2026 range from $85.8 billion to $193 billion depending on who's counting — and that's before you even define which products count as 'embedded.' Here's a working glossary and a guide to reading the numbers.

An open dictionary page
Reference

Payment Gateway Glossary: 30 Terms Every Ecommerce Operator Should Know

A practical glossary covering the payment gateway, compliance, and settlement terminology that shows up constantly in vendor contracts and dashboards — explained in plain language.