.eslintrc.json

{
  "parserOptions": {
    "ecmaVersion": "latest"
  },
  "plugins": ["prettier"],
  "env": {
    "browser": true,
    "node": true,
    "es6": true
  },
  "extends": [
    "eslint:recommended",
    "plugin:prettier/recommended"
  ],
  "overrides": [
    {
      "files": ["**/*.cjs"],
      "extends": [
        "eslint:recommended",
        "plugin:prettier/recommended"
      ],
      "rules": {
        "prettier/prettier": "warn"
      }
    },
    {
      "files": ["**/*.ts"],
      "extends": [
        "eslint:recommended",
        "plugin:@typescript-eslint/eslint-recommended",
        "plugin:@typescript-eslint/recommended"
      ],
      "parser": "@typescript-eslint/parser",
      "parserOptions": {
        "extraFileExtensions": [".svelte"]
      },
      "plugins": ["@typescript-eslint"],
      "rules": {
        "@typescript-eslint/no-explicit-any": "off"
      }
    },
    {
      "files": ["**/*.svelte"],
      "parser": "svelte-eslint-parser",
      "extends":[
        "eslint:recommended",
        "plugin:@typescript-eslint/eslint-recommended",
        "plugin:@typescript-eslint/recommended",
        "plugin:svelte/recommended",
        "plugin:svelte/prettier"
      ],
      "parserOptions": {
        "parser": {
          "ts": "@typescript-eslint/parser",
          "js": "espree",
          "typescript": "@typescript-eslint/parser"
        }
      },
      "rules": {
        "@typescript-eslint/no-explicit-any": "off"
      }
    }
  ],
  "rules": {
    "prettier/prettier": "warn"
  }
}