Use:

Locally use:

You should have an extra local .env file like below.
And then you run: npm run watch and to see your deploying
on localhost:3000

Deploying via render(2022Nov4th update)

Remember to set config vars.
Ref:

CONNECTIONSTRING=<connection string, no any quote>
PORT=<port value>
JWTSECRET=<secret string.>
SENDGRIDAPIKEY=<send grid key>

Note that I have moved from heroku to onrender for free deploying services.

my plans:

1. add a lost-and-found page.
2. add a super admin page to clean mongodb backend easily and safely on the website.

docs:

(under construction)