Determinate Systems vs Kusari

Determinate Systems provides an end-to-end Nix toolchain for installation, collaboration, and deployment across developer laptops, CI, cloud, and edge devices. The platform combines Determinate Nix, FlakeHub, and Determinate Secure Packages. Determinate Nix adds lazy trees, parallel evaluation, stable flakes by default, and a native Linux builder for macOS. FlakeHub offers binary caching, private flakes, organization controls, semantic versioning, and deployment of NixOS, Home Manager, and nix-darwin configurations without local evaluation. Secure Packages is a supported Nixpkgs replacement with curated packages and cryptographic signing. It includes CycloneDX 1.5 SBOM generation, policy checks, and vulnerability scanning; critical vulnerabilities are said to be patched within seven days. Distributions receive at least 12 months of support, with one in four receiving 60 months. Platforms listed are Linux, macOS, Windows, and web. A free plan is available.

Kusari is a software supply chain security platform that maps components across repositories, images, and pipelines in an evolving knowledge graph called the Trust Fabric. It builds that graph from source and build artifacts and enriches each node. Its Kusari Score weighs technical severity alongside reachability, exploitability, blast radius, effort to fix, ownership, and license. The platform accepts source and build artifacts, CycloneDX and SPDX SBOMs, VEX, and existing scanner output. Inspector reviews pull requests through GitHub, GitLab, or the CLI, returning a merge decision and a fix. Its checks cover vulnerabilities, transitive dependencies, secrets, typosquatted packages, licensing, unmaintained components, code weaknesses, and pipeline or image configuration. Reviews can include up to 2,000 dependency changes, with up to 1,000 high-priority changes examined in depth. Kusari lists integrations including GitHub, Jenkins, Jira, ServiceNow, Slack, and Microsoft Teams. The free plan includes unlimited public repositories and one private repository; Starter Team is $50 a month, with a 30-day free period.