In front end JS frameworks there is a tendency to render your site on the server, then also ship JS to the client which then takes over the rendering of the pag

In front end JS frameworks there is a tendency to render your site on the server, then also ship JS to the client which then takes over the rendering of the page and adds interactivity. As you can guess this adds a lot of overhead. Partial hydration allows the developer to specify which parts of the page have interactivity and only those parts of the page are made interactive.