The Intermuse interface comes with a pre-installed Mirador viewer with Annotations Plugin.
In time, this web extension will come pre-bundled with the necessary JS/CSS already produced

For now:

    tar xvzf mirador-integration-annotations-gitfork.tar.gz

    ./NPM-INSTALL-MIRADOR.sh
    ./NPM-WEBPACK-MIRADOR.sh
    ./INSTALL-MIRADOR.sh