How to split a project into two submodules?

Question

git

Good day,
There was a problem with dividing the project into two submodules:
1) web (web part)
2) mobile (mobile version of the project)
I can’t competently cut the project into two submodules.
I would appreciate answers...
Tried via submodule
git submodule add ...

Answer 1

Is everything in one repository now?
if yes, and you need to cut it with saving history, then through filter-branch
, for example, like this