BPMN: Business Process Model Notation ISO 19510:2015
The main features of spawnproc/bpe are: Actors.
Open-source alternatives to spawnproc/bpe include: antonmi/alf — Flow-based Application Layer Framework. eigr/spawn — Spawn - Actor Mesh. general-cbic/poolex — A library for managing pools of workers. seth/pooler — An OTP Process Pool Application.