You probably haven't read the article, but the software they build is a TUI, not a Desktop GUI (in fact a big chunk of the article is how they need to fight against Flatpak and AppImage because they are designed around the assumption of a GUI).
Albeit, the support for pure CLI apps on Windows/macOS isn't as strong as for GUI apps. There's an internal feature that isn't documented that's useful for it - it bundles a little GUI with a button that adds it to the user's path, and let's you trigger the self-update flow. We should expose that more obviously as a feature, although the incentive is low as most people distributing CLI apps and servers aren't paying customers.