configparser
A basic config parser language based off the Python ConfigParser module.
toon-config
A modern configuration engine using Token-Oriented Object Notation (TOON) - a type-safe alternative to YAML and JSON
@freakynit/configurator
Type-safe YAML configuration loader for Node.js with environment variable templating via Nunjucks. Supports local overrides, deep merging, caching, and customizable environment handling for clean and flexible configuration management.