Missing script: build when following primary instructions

[godmar]

The main page advises to:

Build and run the tests:

npm run build

but there is no such script:

$ npm run build
npm error Missing script: "build"
npm error
npm error To see a list of scripts, run:
npm error   npm run

Lifecycle scripts included in [email protected]:
  install
    node-gyp-build
  prestart
    tree-sitter build --wasm
  start
    tree-sitter playground
  test
    node --test bindings/node/*_test.js