We Built a 21-Microfrontend Dashboard with Module Federation, Then Ripped It All Out

We run a hotel management SaaS (SyncStays) with a dashboard made up of 21 independently-built React apps — booking modal, billing, housekeeping, POS, reports, maintenance, staff access, and so on — all mounting into one shared page. The "correct" way to do this, everyone will tell you, is Module Federation. So we built it. End to end. A real host...