Check out Anytype! It is a local-first cross-platform app with Notion-like features, and it has a Kanban view. It is SUPER customisable, I have set it up with a PARA workflow that fits my needs.
Podman is great, but a lot of confusion arise from the rapid development the last ~year and the fact that different distros have relatively old versions in their repos.
I recommend using the latest Fedora Server and defining your containers as quadlets. Also, on Fedora, yoi can install Cockpit (and cockpit-podman) and get a decent webgui to manage your host and container.
I should just write a blog post about this instead of typing this up on my phone in bed 😆