Key binds are a convenient way to perform commands with a single keystroke and make the game easier to work with.
Key binds are added via the F1 console.
Examples of keybinds are as follows
bind b chat.say /backpack
This allows you to press the "b" key to bring up your backpack
bind b ""
This removes a binding from a key
Be careful not to override common keys (like w to move forward).