So far, myHDF5 had to load the entire local file into memory, which was necessarily limiting. Thanks to work by @bmaranville in h5wasm, and to a new data provider in H5Web that can perform partial reads from a web worker, this limitation is now lifted.
The H5Web VS Code extension also benefits from this new worker-based data provider, but the user experience is not quite as seamless for the time being.
Please don’t hesitate to report any issues on any of the projects’ repositories: