Iurii Uses: #Developer Tools

polytypo.dev — Locale-Correct Typography Engine and Spec

Open-source spec and engine that turns straight quotes, hyphens and three dots into the correct curly quotes, dashes, ellipses and no-break spaces for 10

n8n Verified Community Node — EU VAT Validation in Workflows

Verified n8n node that puts VIES VAT validation and EU rate lookups inside a workflow, so onboarding or invoicing can decide on a real VAT number instead of a

vatnode.dev mcp — Official MCP Server for EU VAT Validation

Open-source MCP server that lets Claude Desktop, Cursor and other MCP clients validate EU VAT numbers and look up rates directly in chat.

Use linkinator to catch broken links before production: local URL rewriting, --silent flag, GitHub Actions integration, and false positive patterns for

Data format comparison: JSON, YAML, TOML, CSV, Protobuf, MessagePack — tradeoffs, performance, and a decision framework for production systems in 2026.