QCon SF 2024: Refactoring Large, Stubborn Codebases
Briefly

"To refactor a large, stubborn codebase, you need to have a point of leverage and to pick good ratchets... Build Sorbet to address the issues."
"Use of ratcheting is achieved with the comments located at the top of each Ruby file... it's easy to 'go up a little' in terms of code clarity."
Read at InfoQ
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