1. Sign in to Spotify

Go to developer.spotify.com and sign in with your Spotify account

2. Create an app

Click on the Create app button and fill in the following details

Name
DynamicLake

Description
Doesn't matter

Website
Keep empty

Redirect URI
dynamiclake://spotify-callback

Which APIs are used
Web API

3. Add your Client ID to DynamicLake

Copy your Client ID from the Spotify app page, then open DynamicLake → Settings and paste it into Spotify Client ID. After that, press Log in and your Spotify account will be linked to DynamicLake.