mkcert
mkcert is a utility to create a local Certificate Authority.
Installation
Install mkcert using your preferred mechanism.
You can install
mkcertusing Homebrew:brew install mkcert brew install nss # if you use Firefox
Setup
Run mkcert install to set up the CA.
mkcert -install
This should install all the required files. You can see the Certificate Authority files by running
find $(mkcert -CAROOT)