Make sure you have a nibe uplink account and you have registered an application on: https://api.nibeuplink.com/
Clone or copy the root of the repository into <config dir>/custom_components
Add a nibe configuration block to your <config dir>/configuration.yaml
nibe:
client_id: <client id from nibe uplink>
client_secret: <client secret from nibe uplink>
redirect_uri: <the redirect url you have entered at nibe uplink configuration>