Not sure if this is a git problem in general, a nix, home manager or nix-darwin in combo with git problem.

The problem is that by default every time I do a switch it reupdates the file {$out}/etc/gitconfig with credential.helper=osxkeychain.

I have not been able to find any easy/simple config variant of removing this default setup.

In my git.nix file I have

...
programs = {
git = {
enable = true;
settings = {
user.email = "[redacted]";
user.name = "[redacted]";

    credential.helper = "manager";
    credential.useHttpPath = true;

...

I am expecting the above setting to be the only credential.helpere but osxkeychain keeps popping up as default.

Any hint, clues, help?

Thx in advance.