The "hub" or database / save file has extension `.vha2` but it's a simple text JSON with this format:

Cool. Why not an embedded player, it would make browsing much faster than opening opening up the default system player?

	▲	yboris 4 days ago \| parent [-]
		Variety of reasons, not all fitting everyone. For my preference I like the minimalist MPC-BE interface at full screen on a separate monitor; others might prefer GridPlayer or something else. I feel like external player gives everyone the customization they prefer. Embedded player would require making a tremendous number of design options: where does it reside in the interface, what does it cover up when open? and if it can pop out as a separate window, what value does it bring over an external player?