What open-source C++ projects up to 1k lines do you know where you can get a good hand at designing and building a program?

Question

linux

Good afternoon!
The other day I was tinkering with the steghide project . It turned out to be very readable, modifiable, extensible, etc. A good example of how to write good code.
I would like to study small in size but good quality projects.
What do you advise?

Answer 1

I don't know how many lines, but the project is worth https://github.com/kisli/vmime

Answer 2

Search github:
https://github.com/search?utf8=%E2%9C%93&q=+langua...

Answer 3

www.kevinbeason.com/smallpt