I am a non-major, but I was stuck trying to do View+Firebase on my own as a hobby, so I found this. When I did it on my own, it took me a day to set up the environment because the versions of npm and other things didn't match, and it took me a day to fix errors that weren't caught during the build. This lecture didn't have much difficulty because I followed the example files. I think I saved time compared to when I did it on my own because there was a node-css version error in one place and I had to delete and install it. I am so grateful that the instructor gave me the lecture materials in PDF format, but if it was also at the bottom of the lecture, I think I could apply it right away, so it would be easier to follow the progress. I believe you will make a better lecture, and I have one more thing to say. The names of the work folder and the Firebase folder are similar, so I had to copy them from where to where several times. I also use a Mac, but it was hard for beginners to follow because I switched quickly with the Mission Control screen. The price was reasonable, but I am very satisfied with the results for this amount of money with the discount.