You do not need service workers to do what Web catalog/electron wrappers are doing: google-chrome --app=https://example.com https://example.com firefox --ssb

You do not need service workers to do what Web catalog/electron wrappers are doing: google-chrome --app=https://example.com https://example.com firefox --ssb https://example.com https://example.com (sadly requires enabling the ssb feature) Sure, you can have a tool to create "desktop shortcuts" for the casual user, but this is not worthy of a commercial product.