Zen and the Art of Merging Code
A developer created a feature branch and worked on it for six months. When they tried to merge, they found the main branch had become unrecognizable. The senior developer asked, “Were you working on the same codebase as your team?” “Yes.” “At the same time?” “…No.” The Teaching Unfolds That pause before the second answer […]
A junior added a cache to speed up the slow endpoint. The endpoint was fast. The data was wrong. The senior developer asked, “Did the cache work?” “It did exactly what I asked it to.” “And was that what you wanted?” The Code Behind the Koan Almost every caching incident starts with a correctly implemented […]
The status meeting ran long. Engineers spoke of progress, blockers, and dependencies. The senior developer was silent throughout. Afterward, a junior asked, “Why did you say nothing?” The senior replied, “I was waiting for the meeting to end so the work could begin.” “But the meeting was about the work.” “Yes. That is what I […]
A configuration file grew over the years to two thousand lines. A developer asked the senior, “Why are all of these settings here?” The senior answered, “Each one was once a question someone could not answer.” “And now?” “Now they are questions no one remembers asking.” Unpacking the Teaching Every line in that file started […]
A developer announced excitedly that they had rewritten the project in the newest framework. The senior developer asked, “What does it do now that it did not do before?” “The same things.” “And what does it not do that it did before?” The developer paused for a long time. What Are We Really Asking? The […]
A developer’s phone buzzed at 3 a.m. — an alert from a service they had written years ago. They silenced it and went back to sleep. In the morning, the senior developer asked, “Did the alert wake you, or did your code?” The developer said nothing. The senior continued, “And tonight, will you sleep or […]
A developer added a comment: // TODO: fix this later. Five years later, the comment was still there. The developer had left the company. The code worked. The senior developer asked the team, “Whose TODO is this now?” No one answered. The senior added, “And what does it mean to fix something that does not […]
A team declared the old system unmaintainable and began a complete rewrite. Two years later, they shipped. Within months, developers were calling the new system unmaintainable. The senior developer mused, “If the disease followed us, perhaps we did not leave it behind.” Then: “What did we rewrite, the code or ourselves?” The Teaching Unfolds There […]
The product owner asked, “How long will this take?” The developer answered, “Three days.” It took three weeks. The senior developer asked, “Was your estimate wrong?” “Yes.” “Was the work wrong?” “No.” “Then what was being measured?” Sitting with the Koan Every developer has lived this koan. The estimate was wrong. The work was not. […]
A junior developer ran the program, and a stack trace fifty lines deep appeared. The junior cried, “There are so many places where this went wrong!” The senior developer asked, “Did the error happen in fifty places, or in one?” The junior pointed to the topmost line. The senior smiled. “And from where did that […]
