Interesting- my first time reading about Kamal. I personally used watchtower (https://github.com/containrrr/watchtower) to check for and deploy container updates from the GitHub Container Registry and push new images there from Actions. I also used OpenTofu to automate the VPS provisioning in GH Actions. It would be interesting to read about self-hosted/ free monitoring & analytics solutions for this stack.

Love it. I also wrote a simpler guide here: https://achromatic.dev/docs/deployment#self-deployment