tsconfig.build.json

{
  "extends": "./tsconfig.json",
  "compilerOptions": {
    "rootDir": "./src",
    "outDir": "./build/esm"
  },
  "include": ["**/*.ts", "**/*.tsx", "**/*.mts"],
  "exclude": ["node_modules", "**/*.test.ts", "tests", "vitest.config.*"]
}