Publish on open-vsx.org

Hi, we're trying to upload the vscode-haskell extension to open-vsx.org here: https://github.com/haskell/vscode-haskell/issues/250, but we have a dependency in our package.json on this marvellous extension. Would it be possible to upload this to open-vsx.org as well? Since it seems like extensions can't be uploaded until all their dependencies are also uploaded

Start by reviewing the extension's package.json and the dependency context in haskell/vscode-haskell#250. Check the open-vsx.org publishing requirements and determine what is needed for this extension to satisfy that dependency; done means the extension is available on open-vsx.org.

Written by the indexing model from the issue text.