Search doesn't come with you after a SharePoint migration — the index cannot be moved, and everything must be re-crawled from scratch. This post walks through configuring the right SPSE search topology for your farm size, throttling the first crawl to protect farm performance, and remapping content sources using production-ready PowerShell scripts. All scripts are available in the Search Setup Bundle — a seven-script PowerShell toolkit for $49 on Gumroad, purpose-built for this exact migration moment.