Building toy programs is an excellent way to deepen programming knowledge and rediscover the joy of coding. The author advocates for creating simplified versions of complex software like regex engines, operating systems, emulators, and compilers. These projects follow the 80/20 rule, focusing on core functionality rather than production-ready features. The article provides a comprehensive list of 18 toy project ideas with difficulty ratings and time estimates, ranging from simple CHIP-8 emulators to complex compiler implementations. The author emphasizes learning through hands-on creation rather than relying on AI tools, arguing that building from scratch provides deeper understanding than reading documentation.
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