Weekly Dev Log 2026-W03

🗓️ This Week

• Finally finished the Cyber Security 101 learning path and discovered the AI Security Learning Path on TryHackMe
• Completed 2 rooms from the AI Security Learning Path this week
• Decided to continue working on the SwiftUI tutorial (also explored React Native with Expo out of curiosity)

📱 iOS (SwiftUI)

• Ran unit tests for badge unlocking logic and stepped through them using breakpoints
• Researched the differences between SwiftUI and React Native (with Expo) to determine the best platform for my learning

🌐 Web Development

• Posted my weekly learning and development log on Dev.to📝

🔐 Security (TryHackMe)

• Completed 2 rooms from the AI Security Learning Path on TryHackMe (AI Models & Data, Prompt Engineering)

---

💡 Key Takeaways

• Learned how to use the po command and the map function in the console during debugging
• Chose SwiftUI to focus on native iOS development (compared to React Native with Expo)

TryHackMe Learning

AI Models & Data

• Learned that most AI models rely heavily on Common Crawl, a large public dataset collected from the internet
• Realized that unclear data provenance and hidden sensitive data can lead to security risks
• Learned that training decisions can impact security, including potential data leakage
• Understood that optimization techniques introduce trade-offs between efficiency and security
• Learned that fine-tuning inherits risks from base models such as bias and unsafe behavior
• Realized that models are black boxes and difficult to fully audit
• Learned that model cards are important but often incomplete

Prompt Engineering

• Learned that LLMs process text as tokens and generate probabilistic outputs
• Learned how parameters like temperature and top-p affect responses
• Learned that effective prompts require clear instructions, context, format, and constraints
• Understood the difference between system prompts and user prompts
• Practiced prompt techniques such as zero-shot, few-shot, and Chain-of-Thought

🚀 Next Week

• Continue working on the badge algorithm (Section 5) in the SwiftUI tutorial
• Continue posting small articles on Dev.to
• Continue working on the AI security Learning Path