I believe that fastai should always be in lower case, so I have modified my blogs to follow convention. I am using Visual Studio Code as my editor for now. It appears to have replaces Atom as a Git aware multi language IDE. There are lots of choices, but I’ll stick with Visual Studio code for now. Visual Studio Code is free and open, just like Atom and is based on the Atom electron libraries. Atom is no longer supported, so that is why I am switching.

Note that you need to add .vs to your .gitignore so that Visual Code files are not tracked in git.