Hi @diydsp - welcome to the forum! I replied to your other post on this topic; I suggested some approaches to building a custom image that contains your module. This is a better approach in the long run – BalenaOS is optimized for running applications in containers, and we don’t offer a way to customize the partition sizes.
You can look at our kernel-module-build repo, or other approaches people have taken to accomplish this. I’ve also suggested to the Balena Labs team that it might be helpful to publish a tutorial that uses a custom kernel module.
Thanks again,
Hugh