npm install errors regarding webpack/webpack-stream

[dmoebius]

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Bug Report

Environment

• Bulma version: 6.1.19
• OS: any, Arch Linux in my case
• Node.js 20.5.0
• npm 9.8.1

Current Behavior
Trying to build bulma-calender manually.

npm install gives the following errors:

npm ERR! code ERESOLVE
npm ERR! ERESOLVE could not resolve
npm ERR! 
npm ERR! While resolving: [email protected]
npm ERR! Found: [email protected]
npm ERR! node_modules/webpack
npm ERR!   dev webpack@"^4.12.0" from the root project
npm ERR!   peer webpack@"2 || 3 || 4" from [email protected]
npm ERR!   node_modules/babel-loader
npm ERR!     dev babel-loader@"^7.1.4" from the root project
npm ERR!   1 more (terser-webpack-plugin)
npm ERR! 
npm ERR! Could not resolve dependency:
npm ERR! peer webpack@"^5.21.2" from [email protected]
npm ERR! node_modules/webpack-stream
npm ERR!   dev webpack-stream@"^7.0.0" from the root project
npm ERR! 
npm ERR! Conflicting peer dependency: [email protected]
npm ERR! node_modules/webpack
npm ERR!   peer webpack@"^5.21.2" from [email protected]
npm ERR!   node_modules/webpack-stream
npm ERR!     dev webpack-stream@"^7.0.0" from the root project
npm ERR! 
npm ERR! Fix the upstream dependency conflict, or retry
npm ERR! this command with --force or --legacy-peer-deps
npm ERR! to accept an incorrect (and potentially broken) dependency resolution.

Possible Solution
Running with npm install --legacy-peer-deps works, but I don't know what this does, and if it has any drawbacks.