You certainly can write snappy ergonomic apps that do the SPA thing (the server/client scheme you mentioned). It is very popular for consumer facing apps. Unfor

You certainly can write snappy ergonomic apps that do the SPA thing (the server/client scheme you mentioned). It is very popular for consumer facing apps. Unfortunately SPA's are a little bit more complicated, and it sounds like they made a mess of it. While I don't know the details, it very possible that your internal tool could have been a much more straightforward SSR app.