You can access the Open Food Network platform in various languages, and from various providers, depending on where you are located.
The local entities provide you with a “Saas”’ service (Software as a service, so you don’t have to deploy and run the code yourself), but you can always find the source code here, as it is an open source software released under the AGPL 3 licence.
Usually the local entities that provide this Saas service also provide other services to support more generally the development of the local food sector, like training, consulting, incubation programs, etc. Get in touch with them through their website to learn more about them ! See here.