# SoftBank Robotics documentation What's new in NAOqi 2.8?

# qi application arguments

When you use qi::Application or qi::ApplicationsSession in your application, it automatically interprets some arguments and environment variables.

## Application

### `--qi-log-context` and `QI_LOG_CONTEXT`

Set the context to print with logs, see Context for values.

### `--qi-log-level` and `QI_LOG_LEVEL`

Set the level of logging, see Level for values.

### `--qi-log-color`

Enable or disable log coloring. Possible values are: auto, always, never.

### `--qi-log-filters` and `QI_LOG_FILTERS`

Enable log filtering, see Category filtering for syntax.

### `--qi-sdk-prefix` and `QI_SDK_PREFIX`

Prefix where to search for modules and libraries, see Handling Paths Guide for more details.

## ApplicationSession

### `--qi-url`

Url to connect to, for example: `tcp://localhost:9559`.

### `--qi-listen-url`

Url to listen for, for example: `tcp://localhost:9559`.

### `--qi-standalone`

Start a standalone session. This will start a listening session with a ServiceDirectory.

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