Probably more complex project than projects 99% of what software developers with a real job do daily.

The fact that literally the Creator behind Redis has to go and point this out straight up proves this.

Also Antirez, I am in high school and I can literally write it in writing that there's literally no school with such homework assignments imo. I have written a comment about seeing the curriculum of one of my other friends and my anecdotal evidence talking to friends.

There's literally zero doubt in my mind that there's no such homework assignment.

What high school CS class (or even college class) is assigning a project to implement a minimal web renderer?

This is super impressive.

I am in High school & in my school for some reason CS isn't taught but I still taught one of my friends CS from my tuition you can say.

I looked at his book and wanted to teach him python. You can say its senior high school and what I taught him was what keywords mean in python and operators mean in python etc.

A lot of it was just semantic. Could be the fact that it was first chapter and he came to me when his exam was just some few days later.

I swear but the hardest thing I observed in that book was probably some SQL from what I heard or maybe some minor Java or the fact that it had file access within python or atleast that's what I observed.

The OP's comments are clearly weird and feel like something which should be ignored.

This project is really really cool imo. (Heck I was trying out literally the same thing too but over golang out of curiosity but really didn't land anywhere and the fact that the creator of this was able to still is pretty impressive even if they used LLM or not!, on which I haven't felt any clarification but I just wanted to point how both are really really cool!)

Nowhere in the post does OP say this is a homework assignment. All they said was that they are a high school senior.

Name one college/university program with homework as impressive as this. This is a serious request

To combine with the "but did he build a cpu" thread, back-in-the-day the term project for MIT 6.004 was "build a CPU with TTL", with a very open-ended "performance race" extra credit project at the end. (At least one of the highest scorers went on build a network performance hardware company and sold it to Broadcom :-)

(If the "build a CPU" part doesn't impress, it was common to build an entire compiler toolchain to go with it; also it was long enough ago that a web browser really was a weekend project :-)