Express middleware
Static Middleware
Middleware to serve Static Content
Symbolic Link acts as a shortcut that points to other dir on local machine
require.resolve applies node path resolving algorithm to find abs path of file
const packagePath = require.resolve("local-client/build/index.html");
app.use(express.static(path.dirname(packagePath)))
path.dirname() is used to return the path leading up to dir folder excluding the file itself
express.static does not work well with symbolic links
References
app.use()↔ to use Express middleware