  * depend on node modules when available in Debian:
    + node-es-check
    + node-html-minifier
  * build-depend on packages when modernized in Debian:
    + closure-compiler (bug#916145)
  * patch code to use system-shared node libraries:
    + node-terser
    + node-uglify
  * verify copyright and licenses:
    + musl - cover statements in file <system/lib/libc/musl/COPYRIGHT>
    + misc
  * compile and ship upstream paper docs/paper.tex
