One great solution for that would be the approach many advanced Markdown editors like Obsidian have: the documents remain usable. You might lose some benefits (the integration between documents in a graph-like structure) that are specific to the tool. Still, your work is preserved in a universal format that anyone can leverage.
Most elements of Nano have widely accepted standards, presumably easy to integrate, so that guarantee should be doable.
It's not a universal format since a lot of data is for only for Obsidian plugins that can work work it, and it isn't universally extensible, so not suitable for proper tools this aims to be
Most elements of Nano have widely accepted standards, presumably easy to integrate, so that guarantee should be doable.