Nominatim VS omapsapp

You can simply use geopy API to get longitude and latitude from address. geopy includes geocoder classes for the OpenStreetMap Nominatim, Google Geocoding API (V3), and many other geocoding services. The full list is available on the Geocoders doc section. Geocoder classes are located in geopy.geocoders. Here…

I have had a lot of "fun" with this feature in the past. It has earned a permanent place in my setup script:

ALTER SYSTEM SET jit=off;

Basically a performance blackhole for more complex queries. Most OSM related projects disable it straight away as it only creates headaches.

https://github.com/osm-search/Nominatim/pull/2559

Because osm.org and OsmAnd use different search engines. On osm.org it uses the Nominatim geocoder which is good at parsing addresses the way we are used to writing them. It is also running on a server with a lot of storage and memory resources. OsmAnd is built for offline use so it can't use Nominatim and has much more limited computing resources available to it. It is searching through the map files locally on your phone and however they have chosen to implement that search algorithm seems to perform poorly on addresses.

Ako skupa s adresama imaš i njihove lokacije možeš i koristiti gotov geocoder (e.g. Nominatim je free i koristi OSM podatke, možeš i deployati svoju instancu), pa iz rezultata naći geometrijski najbližu adresu koju imaš.

Then implement a use case. We are going to use Geocoding use case with Nominatim provider. But you can, of course, use a different provider. Copy the example code into your server.js file and make a few changes, so we can send the information we will receive from the user:

There are reasons why this tech was developed: because GPS can take a long time to sync up to the satellites, because GPS often doesn't work indoors, because your phone can keep a local cache of locations, and so you have the ability to find places by name or address (Geocoding) using nominatim ( https://nominatim.org )

and nominatim which does the geocoding/reverse geocoding: https://nominatim.org/

Then it depends on how the location data is conveyed in the group chat. If it's a text message you need to parse it and possibly use a mapping service to do geocoding. Eg. convert "22 Main Street" or "upper Brooklyn" into GPS coordinates. Besides Google Maps API you can maybe use OpenStreetMaps via Nominatim. If it's something more like "we just passed John's house" then you need to figure out how to write some logic to determine a location from that. Or maybe they just used the WhatsApp location share feature, then you probably don't need mapping at all.

There is a beta of Organic Maps for Linux. Check out bottom of this page: https://organicmaps.app/

I would still want to to know if I can selfhost something of similar, low complexity in my home network.

I live in a country in Europe where roaming is prohibitively expensive, so use offline OpenStreetMap abroad a lot, with different apps, mostly https://organicmaps.app

https://organicmaps.app/ is well suited for (completely) offline routing.

Personally I am using [organicmaps](https://organicmaps.app/) which is using OpenStreetMap data, and it works really well.

https://github.com/organicmaps/organicmaps/issues/1694

... right now your bookmarks aren't synchronised anywhere so if you lose your phone all your bookmarks are gone.

When that's working I'll change over in a second!

Organic Maps is offline until it needs to download updated map information from Open Maps data.

https://organicmaps.app/

Search just finds whatever matches sorted by distance so it may not fit one's needs.

Maps.me (iOS, Android), or the 'non-commercial' version of it Organic Maps (iOS, Android). Both apps are free.