Bitwarden build with "npm-build-system" : Fails to install dependencies : "npm ERR! code ENOTCACHED"

[Pablo Zamora]

Dear Guix,

First of all, thank you for developing this AMAZING OS !

I am facing an issue while trying to build 'bitwarden' from source with this 
package definition : https://paste.debian.net/1311741/

Currently in development within my personal channel : 
https://github.com/Pablo12345678901/guix-custom-channel/blob/master/dev/my-bitwarden.scm

There are the guix build logs : https://paste.debian.net/1311743

There are the npm logs : https://paste.debian.net/1311742/

The build fails during the 'configure phase with the error :

npm ERR! code ENOTCACHED
npm ERR! request to https://registry.npmjs.org/@angular-devkit%2fbuild-angular 
failed: cache mode is 'only-if-cached' but no cached response is available.

It seems that npm tries to download package dependencies but has no network 
during the build and fails. I printed dummy network connnexion (or no 
connexion) messages before and after the 'unpack' phases as well as before the 
'configure' phase to debug and the result is that no network is available at 
those steps. I tried it with 'curl' and it says no network at all during the 
build. So far, I understood that this is normal but I would like to download 
the dependencies - HOW ?

I checked the 'gnu/packages/node-xyz.scm' to see whether other packages have a 
workaround and could not find a general pattern. It seems that every node 
package add 0,1 or 2 specific dependencies in the 'inputs' field but nothing 
huge compared to the bitwarden dependencies list. Here is the 'package.json' 
file pretty printed : https://paste.debian.net/1311744

So far, I have built packages with 'cmake-build-system', 'meson-build-system', 
'python-build-system' as well as 'gnu-build-system' on my own channel : 
https://github.com/Pablo12345678901/guix-custom-channel/tree/master/my-packages/my-packages
 (production) and 
https://github.com/Pablo12345678901/guix-custom-channel/tree/master/training 
(training for fun). I do not know well the package manager 'npm' and how it 
manages its dependencies.

After around ~20 hours of trying by myself, I would appreciate any help/advice 
on how to install the dependencies and by the meantime, will continue to work 
on the debug.

Thank you.

Kind regards,

Pablo Zamora