2. Emacs C Ide DemoEmacs setup for C/C++ with Helm describe here: http://tuhdo.github.io/c-ide.html
3. Os01Bootstrap yourself to write an OS from scratch. A book for self-learner.
5. XwidgeteEnhance usability for Xwidget browser in Emacs 25
7. Sample OsA sample OS as demonstrated in the book Operating System: From 0 to 1