configsys

CONFIGSYS is a cross-platform configuration management framework designed to centralize loading, validation, and distribution of application settings. It provides a consistent API for accessing configuration data regardless of the source, enabling predictable behavior across desktop, server, and embedded environments.

Key components include a small runtime engine, a schema-based validator, and backends for files, environment variables, databases, or remote services. The system supports multiple data formats such as JSON, YAML, INI, and TOML, and can monitor sources for changes to apply updates at runtime. Access to values uses dotted-path keys, with support for default values, type coercion, and basic templating.

Configuration may be merged from several layers (default, deployment, environment, user), with a defined precedence. Features include encryption of sensitive values, change hooks, and audit-friendly logging of configuration events. The API is language-agnostic, with bindings available for major languages; it is designed to be thread-safe and to minimize performance impact in production.

CONFIGSYS originated in an open-source community project in the 2010s and has since seen adoption across industries, with variations and forks maintained by user groups and vendors.

See also: configuration management, environment variables, feature flags.