The game launcher provides a few important features for customising the accessibility-related features of the game. Using the menu items of the launcher, you can:
Examine and edit your keybindings. These are the settings that determine which keys activate which game features or player actions (e.g. toggling the D5k or firing your weapon).
Adjust options such as which devices are activated when you enter the game, which sub-features of the devices are enabled by default, sound volume levels and detection distances.
Instructions are provided by the launcher on how to make use of these features and change/review your settings.
If you're an advanced user, you might like to edit the configuration files directly. They are all commented to explain how things work. Read the next section for details.