code: function AddFolder (folders) {
  		if (!!!folders) return false; // Abort, if needed.
  		let FKEYS = Object.keys(Folder),
  			IFOLD = Imm.fromJS(Folder),
  			FMRGE = (o,n) => n||o,
  			FPROP = (v,k) => FKEYS.has(k),
  			FLDRS = Imm.Map(folders).map((v,k) => {
  				let FLD = 	IFOLD.mergeDeepWith(FMRGE,Imm.Map(v).filter(FPROP)).toJS(),
  					FHD = { 'Cache-Control': `public, max-age=${FLD.Age}` };
  				FLD.Folder  = new FOLDER(FLD.Folder, FLD.Age);
  				/////////////////////////////////////////////////////////////////////////////
  				var pub = Express.Router(), name = FLD.Folder, mch = FLD.Matcher,
  					hnd = (req, res) => {
  						var url = req.url, fle = url.replace(mch, ''),
  							pth = name.path(fle), sid = req.sessionID;
  						res.header(FHD);
  						res.status(200).sendFile(pth, {}, (e) => {
  							if (!!e) { 
  								LG.Error(sid, 'EXTERNAL', `${fle} – ${e}`); 
  								res.status(e.status).end();
  							} else {
  								LG.Server(sid, 'EXTERNAL', fle, 'magenta'); 
  							}
  						});
  					};
  				/////////////////////////////////////////////////////////////////////////////
  				pub.get('/', (req, res) => { res.status(403).send('Nope...'); });
  				/////////////////////////////////////////////////////////////////////////////
  				pub.get('/*', hnd); pub.post('/*', hnd);
  				API.use(name.root, pub); return FLD;
  			}).toObject();
  
  		Publics = FLDRS.Publics||{};
  		Uploads = FLDRS.Uploads||{};
  	}
docs: /////////////////////////////////////////////////////////////////////////////////// ROUTE CONFIGURATION Endpoints for when the browser is requesting /{{folder}}/*.*