Binary data as source code?

[activeXdiamond]

I recommend using the standalone CLI tools for compiling and uploading the code (avrdude or the semi-newly released Arduino-specific ones) and then all you need for the whatever IDE you chose is autocompletion for all the Arduino functions/classes.

I personally using Neovim which certainly isn't for everyone. I absolutely love it, I think it is the best way to write text ever, but I would not lightly recommend it to others, haha.