A base TSConfig for working with Node 26.

Add the package to your "devDependencies":

npm install --save-dev @tsconfig/node26
yarn add --dev @tsconfig/node26

Add to your tsconfig.json:

"extends": "@tsconfig/node26/tsconfig.json"

The tsconfig.json:

{
  "$schema": "https://www.schemastore.org/tsconfig",
  "_version": "26.0.0",

  "compilerOptions": {
    "lib": ["es2025", "ESNext.Collection", "ESNext.Temporal"],
    "module": "nodenext",
    "target": "es2025",

    "esModuleInterop": true,
    "skipLibCheck": true
  }
}

You can find the code here.