How to Deploy Excel Addin

Question

I have developed an Excel addin using Typescript and deployed a version to Azure. I am able to sideload the addin on the windows app, mac app and through the web version of Excel. This all works great. I am very happy with the features and functionality that I was able to add to Excel.

I am trying to deploy the addin more widely and I think I have a problem.

In theory, I can go through the process and deploy through AppSource as I want the addin to be publicly available. The problem is that my prospective users are mostly at Universities and it appears that at many institutions access to the Microsoft store is blocked. At my institution they have told me that they can get around this and make the addin available here, but this is not viable elsewhere. I cannot ask a potential user of the addin to figure out who in their IT administration allows such addins to be deployed and to make an exception for my addin.

Is there a solution for this? All I can think of is to remove Excel from the solution. Is it possible to host the spreadsheet and addin somewhere and thus not require distribution of the addin to the user's environment?

thanks,