Explore the "7 Deadlier Sins of Craftsmanship" in this 44-minute conference talk from Devoxx Poland 2019. Delve into common pitfalls that software developers face in their professional lives, often without realizing their negative impact on daily work and team dynamics. Discover how these behavioral "bugs" can lead to misunderstandings in requirements, poor decision-making, and decreased technical quality. Learn to identify and avoid these sins to prevent landing in "coder's hell." Gain valuable insights on improving your craft, from recognizing opinion-based ideas to understanding the cheerleader effect. Examine the roles of pride, greed, lust, envy, gluttony, wrath, and sloth in software development, and uncover strategies to overcome these challenges for better project outcomes.