Do you plan supporting the web version of Excel?
I’m a heavy Excel user and would love to try this, but I’m on Linux, so I can use only the online version of Excel.
why not use a vm/wine for a native experience (though, tbf, native excel is kind of hot garbage these days compared to older versions...)
you can try it in the web version, download the manifest file form his website. Than go in the webversion to add in -> my add ins -> upload and upload the manifest file. Only downside is that it will disappear after a week or so.