Show HN: Sighthound - open-source vulnerability scanner for source code

Sighthound is a newly open-sourced static vulnerability scanner for source code, built using Rust. It can run locally or in continuous integration environments and utilizes Tree-sitter parsers for analysis. The scanner supports both pattern-based detection and taint flow analysis, and its rulesets are included without requiring a paid account or signup. The decision to create Sighthound was driven by the desire to improve scan results and provide a complementary tool to AI-based static application security testing. Existing tools like Semgrep and OpenGrep were found to have limitations, including the use of OCaml, which can create a barrier for potential contributors. Sighthound aims to address these constraints and provide an alternative option for vulnerability scanning.