Serves a static folder while injecting configured env variables in process.env.*
Usage: simple-serve [options] <root>
Options:
-V, --version output the version number
--env-file <path> inject env from env file
-e, --env <name> inject env from env var (default: [])
--env-prefix <prefix> inject env by prefix
--strip-env-prefix strip env prefix (default: false)
-p, --port <port> server port. Defaults to process.env.PORT or 3000
-h, --help output usage information