Incus OCI support is still new and the documentation only contains some basic instructions. However, there are quiet a few post here in the forum and some block posts which explain the basic mechanics how to deploy OCI container on Incus:
- Running OCI images (i.e. Docker) directly in Incus – Mi blog lah!
- Incus Open Container Initiative (OCI) Docker Containers - ScottiByte's Discussion Forum
There is also a community project around supporting docker-compose to deploy a full stack.
In general it requires to register the correct remote and launch the OCI container with correct options. Finding the correct options requires to translate docker instructions into Incus ones.
Hope this helps to get started