minbd

minbd, short for Minimal Backend Daemon, is a lightweight, open-source daemon designed to provide a small set of backend services to client applications. The project emphasizes simplicity, portability, and auditable behavior, targeting resource-constrained environments such as embedded devices and edge deployments.

Design and architecture: minbd runs as a background process with a small event-driven core that handles asynchronous I/O. It exposes a minimalist RPC interface over TCP or UNIX domain sockets and supports pluggable backend modules that implement discrete services. Configuration is stored in YAML or JSON and can be reloaded on the fly without restarting the daemon.

Features: compact footprint, single binary, optional plugins, and language bindings for common languages. It includes token-based authentication, structured logging, health checks, and a small API surface to facilitate auditing and maintenance.

Deployment and usage: intended for lightweight backend tasks in IoT gateways, development sandboxes, and microservices experiments. It can run as a standalone service or alongside other daemons, communicating via the RPC layer.

History and licensing: minbd originated from a community-driven effort to illustrate minimal daemon design. The reference implementation is hosted in a public repository and released under a permissive open-source license.

See also: Daemon, RPC, Microservices, Embedded systems.