With Nembol Web, you can access all the Nembol functionalities (and much more!) on any desktop computer. Simply go to app.nembol.com and, if you haven't done it yet, sign up for a new account. You will need to sign up for a new account even if you already have the Nembol app because you don't have a password just yet.
Once you have created and verified your account, you are ready to connect the channels you want to use (check this article for a full list of the available integrations) and start listing new products on multiple websites at once.