You can create a “gitignore” that is applied to all the repositories. With this configuration you don't have to copy and paste always the same files for your editor (for example).
~/.gitconfig and add or change to something like this:
[core] excludesfile = ~/Dropbox/.global-gitignore
And create that file as if it is a normal
.gitignore is this:
.cargo/config .DS_Store parser.bin *pyc .rspec .ruby-version .vscode