Build reproducibility: pull fonts from npm

[avivace]

We switched from CDNs to serving typefaces as static assets. When a new version of the font is released, this requires the manual step of pulling fonts builds from their upstream websites, clean up unrelated variants, remove them from their entrypoint CSS (e.g. inter.css) and commit the changed files.

This could be automated and made reproducible by switching to a package manager (e.g. npm) to pull the typefaces at build time.

E.g. inter on npm: https://www.npmjs.com/package/inter-ui

[ISSOtm]

I'd prefer if this was not done unconditionally at build time, and instead there was a script to update the font file which is otherwise cached in the source.

This cuts back on the number of deps strictly required to run the site, as well as build times, at the cost of a comparatively modest amount of storage.

[avivace]

Agree!

[ISSOtm]

Do you mind writing the steps down, at least? We can figure out how to script them separately.