Zero Downtime Migrations: Planning Team Hosting Access for Collaborative, Multi-User Environments

https://www.coast-bookmarks.win/how-a-12-person-web-agency-nearly-blew-up-over-bad-hosting-and-the-operational-fix-that-recovered-revenue

How access problems account for most failed “zero downtime” migrations The data suggests that the phrase "zero downtime migration" is increasingly used by vendors and consultants, while real-world outcomes often fall short