Used Vercel with default 'create-react-app' settings, NodeJS 16.x.x Live Site
Set production environment variable (hides source code):
GENERATE_SOURCEMAP=false
Listed in order of relevance and usage, determined by github development history and npm downloads.
Found ImprintJS, being the least maintained, to not work in its 'plug and play' format
The demo's for these three fingerprinting libraries are 'routed' to sub-url's:
/fingerprintjs
/clientjs
/imprintjs
Currently the homepage is empty.