Hello,

Do you know any courses where someone teaches creating anything from scratch, like database, search engine, compilers, programming languages, etc.

From few months I am getting interested in these kind of things, as will help me understanding the systems in depth.

I will even consider a paid a course/resource.

I have checked Codecrafters, but it is quite expensive in my country.
I have also looked into some free resources.

Also please share if you have tried these kind of tutorials before, are they good?

Thanks in advance.