I still need to fix a few things, see the list in the PR description. I'll ping you once that's done, hopefully soon.

This seems to work out-of-the-box for Node.js 10 and above, which includes all release lines of Node.js that have received any level of support since the end of 2019. On Node.js 9 and below, it seems that we need to at least downgrade node-gyp (see #932). However, older versions of node-gyp don't seem to fully support Python 3... and that might only be the tip of the iceberg.

I'd really like to see tests pass even against Node.js 0.10, but I am not sure how much benefit that actually brings in practice. I'd be glad to spend some more time on this if the maintainers of this repository feel that testing against Node.js 9 and below is important, but otherwise, perhaps Node.js 10 and above is already better than the broken Travis setup. (The only officially supported Node.js release lines are 18, 20, and 21 right now.)