`models/terminal.obj`: sofar CC-BY-SA-4.0

`textures/terminal_base.png`,
`textures/terminal_idle.png`: based on Isabella-II

`sounds/terminal_keyboard_click`:
  - http://freesound.org/people/yottasounds/sounds/380135/ CC0

`sounds/terminal_power_*`:
  - http://freesound.org/people/jessepash/sounds/139970/ CC0