| OS foundation | illumos kernel and services | Linux kernel and GNU/Linux ecosystem | FreeBSD kernel and base system | illumos kernel and services |
| Package model | Debian-oriented userland, APT / DPKG and ported packages | Native Debian / Ubuntu .deb repositories, APT / DPKG | FreeBSD packages and ports, pkg | Varies by distribution; commonly IPS or pkgsrc |
| ZFS storage | OpenZFS-based storage foundation, snapshots and replication | OpenZFS available on supported Linux installations | OpenZFS integrated into the FreeBSD ecosystem | ZFS / OpenZFS is a major platform capability |
| Workload isolation | illumos Zones; bhyve virtual machines on supported builds | Namespaces / containers; KVM virtualization | Jails and bhyve | Zones; virtual machine options vary by distribution |
| System update recovery | ZFS Boot Environments for reversible OS update workflows | Depends on distribution, filesystem and tooling | ZFS boot environments supported | ZFS boot environments supported by several distributions |
| Application migration path | Familiar Debian packaging concepts; selected source-based ports and service reconfiguration | Best native compatibility for existing Linux software | Ports / recompilation or selected Linux compatibility facilities | Porting and package integration depend on each distribution |
| Key reason to choose | illumos infrastructure capabilities combined with a Debian-oriented integration approach and bespoke engineering | Broadest Linux hardware, application and tooling ecosystem | Cohesive BSD system, mature jails and ZFS capabilities | Mature illumos infrastructure and distribution-specific tooling |