Deno Fresh: How to open database file from file input in browser?

I want to open a user-selectable database file dynamically, from an HTML file input.

Thus, the database file is not statically available in the source code.

There’s the option to open/create an in-memory database, but that would create a new one, not open an existing File blob in memory.

Is it possible to pass a File/Blob as the input database to open?