Create custom endpoint to wp rest-api

General information for the website: Event listing
Description of requirements/features: I need to create custom endpoint to wp rest-api

The custom endpoint should get the posts based on a location radius search.
I have a custom post type (let's call it event). Each event post has a location created with ACF google map field. This is saved in the DB something like this a:3:{s:7:”address”;s:51:”70671 Bluewater Highway Grand Bend, Ontario N0M 1T0″;s:3:”lat”;s:10:”43.3203177″;s:3:”lng”;s:18:”-81.75439059999997″;}

Right now I can easily fetch my event posts by category at /wp-json/wp/v2/myCustomPostType?filter[taxonomy]=category&filter[term]=myCategoryName&offset=0&per_page=10

What I want is an endpoint that looks something like this: /wp-json/wp/v2/myCustomPostType?filter [location]=distance&latitude=52.000044&longitude=-0.0842720&radius=10&orderByDistance &offset=0&per_page=10


It should work also on taxonomy filter like this: /wp-json/wp/v2/myCustomPostType?filter[taxonomy]=category&filter[term]=myCategoryName &[location]=distance&latitude=52.000044&longitude=-0.0842720&radius=10&orderByDistance &offset=0&per_page=10

The above url should list all the events located on 10 mile radius distance from the address latitude=52.000044&longitude=-0.0842720
The posts are ordered by distance.

In phase 2 I would like to have also an option to get the posts in the radius but to order them by date:
[location]=distance&latitude=52.000044&longitude=-0.0842720&radius=10&orderByDistance=10&orderByDate


This posts:
https://wordpress.org/support/topic/rest-api-with-geolocation-queries/
and
https://www.slideshare.net/bhogg/working-with-geolocation-in-wordpress

has some details about how to create a REST API with geolocation queries.

It should be a straight forward job for an experienced php/wp dev.
Specific technologies required: Wordpress

Extra notes:
I want the all the code in the scope to be included in a plugin built with https://wppb.me/
No external plugins to be included