For another project I need a way to fetch JS dependencies, as I couldn't
avoid them there. napalm seems to be the best option for this at the
moment, as the approach of running a local registry system seems to be
more robust than using npm's offline mode (which npmlock2nix) is doing.
If the latter gets better, it may be prudent to switch. napalm is
relatively unproblematic, i.e. no Haskell in IFD.
Change-Id: Icf57d3505a55422681bd90c445bde52fcf5841aa
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7289
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
