In a negative way: the current JS ecosystem and the way we build web apps in general. I started programming in late 80s and was very scrupulous in my work. I le

In a negative way: the current JS ecosystem and the way we build web apps in general. I started programming in late 80s and was very scrupulous in my work. I learned how to profile and optimize my code; I basically knew what each byte was doing. When I discovered Linux it was such a joy as I could basically trace the whole execution path and optimize everything even more. Also, I love order. I enjoy clean and elastic design that keeps things in order but gives you the flexibility to extend the functionality indefinitely. In spite of some reservations, I enjoyed building apps with GUIs in the 90s, the process was quite pleasant and neat.