====== Applications and services ======
ApuOS separates the system host from optional applications. The Package center provides signed host-compatible modules; the Application center provides templates and metadata while the NAS downloads container images from the selected registry.

===== Choose before installing =====
Check architecture, host version, memory, storage, ports, permissions and the application's own license. A catalog entry is not a promise that every device can run the application. The NAS verifies signatures, hashes and compatibility before installation.

===== AI applications =====
AI capabilities include model connections, local model runtimes, speech/OCR, knowledge retrieval, gateways, agents and automation. Each capability has its own model, runtime, resource and credential requirements. See [[apps/ai|AI applications]] for the current boundaries.

===== Containers =====
The server stores catalog metadata and templates; it does not mirror every Docker image. The NAS pulls images directly from the reviewed registry and keeps installation data, credentials and container state locally.