Our python buildpack installs libraries specified in your project’s requirements.txt file. GeoDjango may be a problem as it looks to depend on C-libraries which are not installed as part of the base image. We can explore adding this functionality in the future, but in the meantime I would recommend adding a Dockerfile to your repository.

While this tutorial isn’t specific to App Platform, Step 6 describes how to configure a Dockerfile for a Django project. When creating an application in App Platform, we will build and run the image from a Dockerfile (named Dockerfile) if we find one in the root of the project.

Just to add that Digital Ocean’s “managed database” offering does seem to support Postgres extensions like postgis. Here’s a full list and instructions on how to enable them: https://docs.digitalocean.com/products/databases/postgresql/resources/supported-extensions/#supported-extensions