Raise a mapping service on your server?

Question

Programming

There is a certain city "Ch", and 100 points in it.
There was a need to make a map with points marked on it. For example, a city where houses with offices and links between them are marked (with the ability to add info by clicking, and a link to go), something like this

: the area is quite large, somewhere the points are compactly located, somewhere very remotely. On a small scale, the distant ones are not visible, on a large scale, those standing next to each other merge.
As far as I understand, I need some kind of mapping engine and a layer with my objects on top.
Are there ready made solutions to do this?
The main requirement is that everything must be stored locally, and not on a third-party server. The map itself is highly desirable as offline. I'm interested in the ability to cache a city (or work with an OpenStreetMap dump).
And of course, no one will give money for this. This is why it should be as free as possible.

Answer 1

If you're JavaScript friendly, take a look:
Leaflet -- leafletjs.com/examples.html
As far as I understand you need a static map of your network, it's quite possible to copy-paste the code from the examples.

Answer 2

The APIs of Google Maps and Yandex Maps allow you to sort of, at the same time, take their maps

Answer 3

ocsr