> ## Documentation Index
> Fetch the complete documentation index at: https://docs.kombify.io/llms.txt
> Use this file to discover all available pages before exploring further.

# stackkit compat

> Show OS support evidence and host conformance diagnostics

Show OS support evidence and host conformance diagnostics.

Show the published StackKits compatibility evidence for this operating system and its hypervisor, then run non-destructive diagnostics for local container-host prerequisites.

```text theme={null}
The host diagnostics check:
  • Virtualization type (KVM, OpenVZ, LXC, bare metal)
  • unshare(2) syscall availability
  • OverlayFS support
  • Bridge networking support
  • iptables NAT support
  • Cgroup version
```

Published evidence comes from automated lifecycle receipts bound to a release. Host diagnostics do not certify, rank, recommend, or price any server provider.

```bash theme={null}
stackkit compat [flags]
```

**Examples**

```bash theme={null}
# Check the published OS and hypervisor evidence and the host container prerequisites
stackkit compat
```

Subcommands: [`stackkit compat emit-os-matrix`](#stackkit-compat-emit-os-matrix)

## stackkit compat emit-os-matrix

Render the public OS and virtualization compatibility projection.

```bash theme={null}
stackkit compat emit-os-matrix [flags]
```

| Flag            | Type   | Default                           | Description                                     |
| --------------- | ------ | --------------------------------- | ----------------------------------------------- |
| `--archive-dir` | string | `docs/data/os-compat`             | directory holding per-release v\*.json archives |
| `--docs-out`    | string | `docs/OS_COMPATIBILITY.md`        | generated markdown output                       |
| `--input`       | string | `docs/data/os-compat/latest.json` | committed public compatibility projection       |
| `--website-out` | string | `website/public/os-compat.json`   | generated website feed output                   |