# Services
IncusOS system services are optional system-wide features, typically
used to integrate with an external system.

The majority of services today are centered around connecting to
external storage or networking.

```{toctree}
:maxdepth: 1

Ceph </reference/services/ceph>
iSCSI </reference/services/iscsi>
LVM </reference/services/lvm>
Multipath </reference/services/multipath>
NVMe </reference/services/nvme>
OVN </reference/services/ovn>
Tailscale </reference/services/tailscale>
USBIP </reference/services/usbip>

Shared API </reference/services/shared-api>
```