faasd is OpenFaaS reimagined, but without the cost and complexity of Kubernetes. It runs on a single host with very modest requirements, making it fast and easy to manage. Under the hood it uses containerd and Container Networking Interface (CNI) along with the same core OpenFaaS components from the main project- github.com 
- GitHub - openfaas/faasd: A lightweight & portable faas engine- github.com
YOUTUBE NckMekZXRt8 Getting Beyond FaaS: The PLONK Stack for Kubernetes Developers - Alex Ellis, OpenFaaS
In this post Alex will introduce OpenFaaS' newest project: faasd. faasd brings the benefits of a portable Serverless experience without needing to learn and operate Kubernetes. From the first iteration of OpenFaaS in 2016 (then called "faas"), portability and openness were two driving values for the project and community- openfaas.com
- Meet faasd - portable Serverless without the complexity of Kubernetes- openfaas.com
The following examples blog post shows how you might wish to document an R function on OpenFAAS, the question is can we make this functionality not simply described but to `runs in literate wiki:
- R-templates on openFAAS.com
YOUTUBE ZnZJXI377ak Meet faasd. Look Ma’ No Kubernetes! - Alex Ellis, OpenFaaS
faasd is OpenFaaS reimagined, but without the cost and complexity of Kubernetes. It runs on a single host with very modest requirements, making it fast and easy to manage. Under the hood it uses containerd and Container Networking Interface (CNI) along with the same core OpenFaaS components from the main project- openfaas.com
# See also - faasd and Thought on faasd - OpenFAAS and Serverless computing - Microservices - Documenting Code