Add a SharePoint Web Part to multiple sites at once

Business requirement: Add a SharePoint Web Part to multiple sites at once You might have created a set of similar SharePoint sites, all based upon the same site template, just like me. After some time, business requirements change, and the end-users want to have a new Web Part on all the home pages of each of these SharePoint sites. If there are a multiple SharePoint sites, you might want to avoid, just like me, to edit each of the home pages of those SharePoint sites one-by-one.