I found on the net and it's all too complicated.
http://bcache.evilpiepirate.org/ for example seems like the official page for bache. Yet nothing is found there. How to install? How to set up? Nothing
Some tutorial says that I have to make bcache, where can I download it? How do I download it?
Some says that I have to recompile kernel. Some tutorial doesn't mention that. Which one is right?
Nothing makes sense.
Okay there is git. Then what? What to do with git?