the-book-of-secret-knowledge

This is a well-maintained, community-driven collection of tools, tutorials, and references for sysadmins and security folks. Zero original research or novel technical work—it's a curated link aggregator with decent organization. The signal is real: people actually use this as a reference (30k+ stars). The slop score reflects that it's purely curation, not creation. Not trying to be anything it isn't, which is refreshing. Maintenance appears active. Exactly what it claims to be.