Node Error: error:0308010C:digital envelope routines fix

GitPod-openssl-legacy-provider-fix.md

When you try to run a project in node and you get an error like:

Error: error:0308010C:digital envelope routines::unsupported
    at new Hash (node:internal/crypto/hash:69:19)
    at Object.createHash (node:crypto:133:10)

Fix it with this fix I found from NikaidouSkin42

Or you can run this command，then run "npm run build"。 it still works on Node.js 16 :

for macOS, Linux or Windows Git Bash

export NODE_OPTIONS=--openssl-legacy-provider

for Windows CMD (Command Prompt)

set NODE_OPTIONS=--openssl-legacy-provider

for Windows PowerShell

$env:NODE_OPTIONS="--openssl-legacy-provider"

No I don't understand the what or why of it, I'd love to know.