Hey there, this is really inspiring. I did something similar to what you described (writing on weekends while working) except I wrote a novel, not a tech book.

Hey there, this is really inspiring. I did something similar to what you described (writing on weekends while working) except I wrote a novel, not a tech book. I have some feedback, 5.1 Garbage collection, you write "By chance, Go has a garbage collector." Was this really by chance? I don't know think so, it was by design! You even suggest this with your paragraph before explaining what GC is. Consider changing the word "chance" to something like "design" or another word that reflects the concerted choice by the Go authors. If you find this helpful, let me know and I'd be happy to continue giving you any similar feedback.