how to use same identifier for different directory paths in ejs with different static assest folder

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[X] I have searched existing issues to ensure the issue has not already been raised

Issue

this is my ejs

<head>

     <%- include('../../public/components/headercontent.html'); %>

</head>

and below is my app/server.js file configuration

fastify.register(require("point-of-view"), {
  engine: {
    ejs: require("ejs"),
  },
  root: path.join(__dirname, "../views"),
});

fastify.register(require("fastify-static"), {
  root: path.join(__dirname, "../") + "/public/",
});

so the above works as expected my problem statement is below i have two static assets folder

public
public-release

what is expected scenario is

I want to use same public name but path can be different something like
case scenario 1

fastify.register(require("fastify-static"), {
  root: path.join(__dirname, "../") + "/**public-release**/",
  nameused:'public'
});

case scenario 2

fastify.register(require("fastify-static"), {
  root: path.join(__dirname, "../") + "/**public**/",
  nameused:'public'
});

is there a way I can achieve this ?

Objective :

1.i want to switch dynamically my js and css for home grown release /bundling system and without touching my existing codebase of linking them

2.so the idea here is to just the update the point where static assests are served and change them through custom yarn or npm run scripts

for eg:- when i passed say dev the static assets should serve from 'public ' folder

and when i passed say prod the static assets should serve from 'public-release' folder

fastify / point-of-view

how to use same identifier for different directory paths in ejs with different static assest folder #334

Prerequisites

Issue