What to write in C at the beginning and end of the path?

Question

C++ / C#

Hello.
I recently decided to move on to learning the C language. I'm reading a book by Dennis Ritchie if anything. I'll tell you without water. In C, I am attracted to "low-level". And for example, while studying Python - I didn’t have questions like what to write? This was understandable enough, because there was room to turn around. Here you have PyQT and NumPy ScikitLearn and all that different stuff. And I don’t even know what to write in C, because incredibly complex projects are written on it, where execution speed and small code size are important. Any firewood and Linux kernels. Maybe someone knows where you can practice this language. Some ideas for projects to throw for example
PS I'm going to develop further in Computer Science and examples for development in this area would also not hurt. Thanks

Answer 1

I wrote an archiver, http proxy, image processor, firmware image processor... small GUI applications with all the goodies, but 5-10 KB in size... you can write anything

Answer 2

It is not necessary to write complex projects in C.
Write some C console utilities.
For example, a program for displaying a text file on the screen, listing the contents of a directory.
Then something more complicated like date with wildcards, QR encoder, archiver, whatever.
And it makes no sense to throw up ideas for projects, no one knows what is personally interesting to you enough to force you to make a project and bring it to a working version.

Answer 3

for example writing copies of GNU utilities.
first you write it yourself - then you look at the GNU code and figure it out, and how much stringing is stuffed in.