Amitai Schleier

Information & Communications Technology

TDD TDD & BDD Legacy Code mob programming Refactoring Pair Programming podcasting open source Continuous Integration

Hessisch Oldendorf, Lower Saxony, Germany

Strangle Your Legacy Code

When you're mired in an ancient codebase that makes refactoring risky and expensive, how do you clear a path to continued delivery? According to the old saw, the best time to plant a tree is 20 years ago, and the next best time is today. But if you already have a gnarled old source tree, an old saw is the wrong tool. Instead, plant a Strangler: a pattern for preserving your software investment by arranging for new functionality to grow in a new codebase.

As a mob, we'll test-drive a Strangler, then test-drive new features into it. Don't know what to try next? Take the keyboard. Got an idea? Step away and talk someone else through it. You'll leave with a powerful strategy for extending the useful life of working, valuable software -- _especially_ when it's hard to change. We'll also send you home with a free bonus development practice to accelerate your team's learning. For a limited time only!

Amitai Schleier

Software development coach

Amitai Schleier (@schmonz) is a software development coach, legacy code wrestler, non-award-winning musician, and award-winning bad poet. He publishes fixed-length micropodcasts at Agile in 3 Minutes, writes variable-length articles at, and contributes code and direction to notable open-source projects such as NetBSD, pkgsrc, ikiwiki, and qmail. Amitai’s ideas, prose, music, and puns have manifested at Agile Roots, Agile for Humans, CodeMash, Self.conference, pkgsrcCon, Pittsburgh Perl Workshop, NYCBUG, the International Rachmaninoff Conference, and the Alfred Joyce Kilmer Memorial Bad Poetry Contest.

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