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Up Next: Igor Morozov - Ducks and monads: wonders of Ruby types https://www.youtube.com/watch?v=v-H9nK8hqfE

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### \o/ EuRuKo 2018 \o/ ###
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###   Day 1  ###

Yukihiro Matsumoto - Keynote https://www.youtube.com/watch?v=cs0s5lZAUwc
Chris Salzberg - Metaprogramming for generalists https://www.youtube.com/watch?v=1fIlcnrJHxs
Joannah Nanjekye - Ruby in containers https://www.youtube.com/watch?v=qPNkOPvjecs
Damir Zekić - Tool belt of a seasoned bug hunter 
https://www.youtube.com/watch?v=ObB0dzX_rBs
Igor Morozov - Ducks and monads: wonders of Ruby types https://www.youtube.com/watch?v=v-H9nK8hqfE
Brad Urani - Rails anti-patterns: how not to design your database https://www.youtube.com/watch?v=zo3iRBPzscU
Coraline Ada Ehmke - The broken promise of Open Source https://www.youtube.com/watch?v=5ByUPh_uPqQ
Louisa Barrett - Ruby not red: color theory for the rest of us https://www.youtube.com/watch?v=OgO1EIFDgPU

###  Day 2  ###

Nadia Odunayo - The case of the missing method — a Ruby mystery story https://www.youtube.com/watch?v=OlOA0aGxud0
Pitch the next EuRuKo's location https://www.youtube.com/watch?v=YXe9OoQW8lc
Ana María Martínez Gómez - Let’s refactor some Ruby code https://www.youtube.com/watch?v=jUc8InwoA-E
Pan Thomakos - Debugging adventures in Rack-land https://www.youtube.com/watch?v=5o4krwjJbOI
Lightning talks https://www.youtube.com/watch?v=zSeaNPjwnnA
Kerstin Puschke - Scaling a monolith isn't scaling microservices https://www.youtube.com/watch?v=tA8gGd_Rl7E
Amr Abdelwahab - An empathy exercise: contextualising the question of privilege https://www.youtube.com/watch?v=6CqmGYvFwAQ
Wrap up & announcing the next EuRuKo's location https://www.youtube.com/watch?v=wMggsShGTzk

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In the video titled "Tool belt of a seasoned bug hunter," speaker Damir Zekić addresses critical debugging techniques and tools every developer should have, emphasizing his personal experiences with performance issues in a Rails application. He introduces the concept of different types of bugs — loud bugs that reveal themselves quickly and silent bugs that cause long-term damage without immediate notice.

Key points discussed include:  
- **Identifying Bugs:** The process begins with reproducing the issue reported by the CTO concerning slow-running specs. Initial tests show no problems, but repeated tests eventually reveal a significant delay, confirming the existence of a bug.  
- **Using Git Bisect:** The speaker highlights the use of `git bisect` as a binary search method to identify the commit that introduced the performance issue, showcasing its efficiency in narrowing down potential problematic changes based on good and bad commit markers.  
- **Challenges in Debugging:** Zekić recounts the hurdles faced, such as crashes due to uninstalled gems and database mismatches while checking out older commits. He emphasizes the importance of stable commits to ensure that any code version can be executed successfully in the future.  
- **Memory Profiling:** The discussion moves into memory profiling and detecting potential memory leaks using Ruby tools. He explains how Ruby's memory management can lead to bloat over time, making it crucial to analyze memory consumption trends.  
- **Performance Issues:** Further investigation reveals a particular method in Rails responsible for performance slowdowns. He explains the method's logic, which dynamically alters route helper methods, directly impacting application performance.  
- **Solution Implementation:** To mitigate this issue, Zekić recommends lazy-loading controllers, limiting the instances of method generation to when they are actually needed, significantly improving application speed.

In conclusion, the video stresses the need for developers to not only understand their code but also to have a solid grasp of all application dependencies. Effective debugging not only requires technical skills but also attentiveness to application structure and external libraries that can affect overall performance.

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