I am programming a website (Node server) for a friend of mine who created a fantasy world, to promote his books and games.
As a former GIS tech, I really would like to setup a map of his world (using his drawings). I don't have any worries about projection since I'll be using Mercator, and nor about rendering since I can choose between OpenLayers and Leaflet.
My problem is: I don't own a server, nor any computer that could be used as, I rely on Heroku for hosting my apps and websites freely.
Does anyone know of a solution, some kind of WMS host allowing to upload at least georeferenced rasters?
I considered installing Geoserver or Mapserver but I really don't think free plans like I have on Heroku or any other webhost would allow me to install such softwares.
I considered also using npm packages directly in my website backend, but all I can find seems to be vector and no raster
There are about two dozen standard paper (A4) drawings to upload, I am open to any format.
If I find nothing else, I will vectorise the drawings and use a node server.