[Secretmapper]

There's some work on this on the web space - our company is doing something not too dissimilar using the still experimental API called WebCodecs.

And that pretty much says everything unfortunately - it's still an experimental API with limited availability.

You can do some parts of this using Canvas[0] but there's lots of caveats.

[0] https://github.com/bwasti/mebm/tree/main