Is this library dead?

[talalong]

I can't get it to work using vite/esbuild. I am getting this error: Could not resolve "stimulus"

.yarn/__virtual__/stimulus-flatpickr-virtual-efd7fe2a1d/7/.yarn/berry/cache/stimulus-flatpickr-npm-1.4.0-5f7ca94a98-10c0.zip/node_modules/stimulus-flatpickr/dist/index.m.js:1:27:
import { Controller } from 'stimulus';