Determinate Systems vs Wisec

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.

Wisec collects, signs, and preserves software build evidence for teams preparing for Cyber Resilience Act readiness. It links builds in a signed chain using Ed25519, SLSA provenance, and public Sigstore/Rekor timestamping. It generates signed CycloneDX SBOMs and VEX documents describing the exploitability status of detected CVEs. Eleven anomaly rules run on each build, covering project history and known-bad patterns. Teams can set CI gate policies to block or warn on secrets, vulnerable dependencies, unapproved contributors, risk thresholds, and CVE severity. Wisec supports GitLab CI, GitHub Actions, Jenkins, and Azure DevOps, and imports SARIF v2.1.0 findings from tools such as CodeQL, Semgrep, Snyk, and Trivy. It maps evidence to NIS2, SOC2, ISO 27001, and CRA and exports PDF reports; CRA and ISO 27001 mapping is not a conformity claim. The maker says data is encrypted in transit and at rest, hosted in France, and kept within the EU. Plans include Free at free, Business at €990 a year, and Pro at €2,990 a year.