GNU Guix vs Spack
| GNU Guix | Spack | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | No | No |
| Paid from | Free | — |
| Open source | No | No |
| Platforms | Linux, self-hosted | Linux, macOS, Windows |
| Free plan | Yes | Yes |
| Lockfile support | — | Yes |
Both are listed in Best Package Managers. On Freedom251, GNU Guix scores higher on our published basis.