Private npm packages preventing install

[alchemicjon]

Overview

When running bin/bootstrap to set up the app for the first time, I ran into an error installing npm packages. It looks like there are two packages that are coming from a private npm server:

• https://npm.powerapp.cloud/@types/express-serve-static-core/-/express-serve-static-core-4.19.6.tgz
• https://npm.powerapp.cloud/webpack-dev-server/-/webpack-dev-server-5.2.1.tgz#049072d6e19cbda8cf600b9e364e6662d61218ba

The error

== Installing dependencies ==
The Gemfile's dependencies are satisfied
yarn check v1.13.0
[---------------------------------------------------------------------------------------------------------------------------------------------] 0/986(node:124) [DEP0040] DeprecationWarning: The `punycode` module is deprecated. Please use a userland alternative instead.
(Use `node --trace-deprecation ...` to show where the warning was created)
error An unexpected error occurred: "https://npm.powerapp.cloud/@types/express-serve-static-core/-/express-serve-static-core-4.19.6.tgz: Request failed \"401 Unauthorized\"".
info If you think this is a bug, please open a bug report with the information provided in "/home/app/src/yarn-error.log".
info Visit https://yarnpkg.com/en/docs/cli/check for documentation about this command.
yarn install v1.13.0
(node:344) [DEP0040] DeprecationWarning: The `punycode` module is deprecated. Please use a userland alternative instead.
(Use `node --trace-deprecation ...` to show where the warning was created)
[1/4] Resolving packages...
[2/4] Fetching packages...
error An unexpected error occurred: "https://npm.powerapp.cloud/@types/express-serve-static-core/-/express-serve-static-core-4.19.6.tgz: Request failed \"401 Unauthorized\"".
info If you think this is a bug, please open a bug report with the information provided in "/home/app/src/yarn-error.log".
info Visit https://yarnpkg.com/en/docs/cli/install for documentation about this command.

== Command ["bin/yarn check || bin/yarn install"] failed ==