unhttpx is not a fast and multi-purpose HTTP toolkit that allows running multiple probes using the retryablehttp library. In fact, it does the exact opposite.
TL;DR: turns a list of URLs into hostnames.
go install -v github.com/melvinsh/unhttpx@latest$ echo "https://google.com/yo" | unhttpx
google.com
$ cat urls.txt | unhttpx
hackerone.com
zerocopter.com