  * depend on node modules when available in Debian:
    + node-es-check
    + node-html-minifier
    + wasm2c
      See also <https://github.com/emscripten-core/emscripten/issues/12688>
  * build-depend on packages when modernized in Debian:
    + closure-compiler (bug#916145)
  * compile and ship upstream paper docs/paper.tex
  * compile and ship upstream documentation website
