Variable: PACKAGE_TSCONFIG_BASE

const PACKAGE_TSCONFIG_BASE: "{\n  \"compilerOptions\": {\n    \"target\": \"ES2022\",\n    \"module\": \"ESNext\",\n    \"moduleResolution\": \"bundler\",\n    \"strict\": true,\n    \"skipLibCheck\": true\n  }\n}\n";

Defined in: packages/core/src/errors.ts:176

Content of the tsconfig.base.json that mode package expects one level above packagesDir.