There are 3 repositories under little-snitch topic.
Domain blocklists, IP blocklists, Little Snitch .lsrules, and cloaking files for blocking Apple telemetry
Linux graphical network connections manager with tomoyo firewall support (based on mihaivzr/netactview)
Visualize your system's internet connections on a globe.
Little Snitch Rule Groups
This repo provide rule groups for Little Snitch based on unified host list to block ads, malware, fake news , gambling and porn
A collection of LittleSnitch rule sets to block outbound connections to a given country.
Generators for Little Snitch rules that try to scrape authoritative firewall info sources, and auto-deploy lsrules to gist files.
A subscribable Little Snitch rule file to block Chinese ad servers when visiting Chinese websites.