Blog
Source-checked guides on engineering standards, accessibility, security, and everyday decisions. 8 articles.
The 28/36 Rule: A Lender Screen, Not a Home Budget
Use mortgage DTI ratios as underwriting reference points, then compare written estimates with take-home cash flow, reserves, and real costs.
Password Defaults: NIST, Entropy & Passkeys
Use a password manager's generator, choose a longer random password where it fits, and understand where passkeys and breach checks help.
The Real Math of Credit Card Debt
Minimum payments keep an account current, but they are not a payoff plan. Learn how to compare realistic payment scenarios safely.
When Regex Is the Wrong Tool
Learn when JavaScript regex is appropriate, how to avoid catastrophic backtracking, and when to use a parser instead.
What WCAG Contrast Ratios Do — and Miss
Understand WCAG contrast ratios, their limits, and practical checks for text, components, dark mode, and color-only cues.
Why Emoji Breaks String Length
Learn why emoji can count as multiple UTF-16 code units, and how bytes, code points, and grapheme clusters differ in JavaScript.
UUID v4 vs v7: Choosing Database IDs Without Guesswork
A practical guide to UUIDv4 and UUIDv7: timestamps, ordering, database tradeoffs, collision basics, and when a different ID format fits better.
How to Decode a JWT Token Safely
Decode JWT tokens safely: inspect Base64URL claims, read exp, iat, and nbf, and understand why decoding never proves a signature is valid.