This contains the hst.sh script, adapted from diethnis' hastebin standalone sh script.
curl -sfL get.hst.sh | bash
You need curl to install and use hst.
The binary will be saved to ~/.local/bin/hst - make sure it's in your $PATH.
See hst -h.
Some examples:
echo $PWD | hst
hst /etc/nginx/sites-enabled/ravy.org
Using hastebin shouldn't be a hassle.
This just makes it a one-liner and doesn't require anything apart from bash and curl.