> For the complete documentation index, see [llms.txt](https://docs.portainer.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.portainer.io/faqs/troubleshooting/stacks-deployments-and-updates/why-dont-custom-standalone-app-templates-show-when-using-docker-swarm.md).

# Why don't custom standalone app templates show when using Docker Swarm?

One of Portainer's key principles is to enforce best practice across all functions — including Swarm. When you use Swarm, always use Swarm services, not containers.