Initialize a git repo for nixconfig

[srid]

nixone/setup.sh

Lines 16 to 21 in 6c3996c

	mkdir -p ~/nixconfig && cd ~/nixconfig
	nix --accept-flake-config run github:juspay/omnix -- \
	init github:juspay/nix-dev-home -o . \
	--non-interactive \
	--params '{"username":"'$(whoami)'", "git-name":"'$(id -F)'", "git-email":"'$(whoami)'@juspay.in", "neovim": true, "github-ci": false}'
	nix run

After doing a nix run successfully, initialize a git repo using git init && git add . && git commit -m Init. This will be helpful to track config changes in the future, and to be able to revert recent changes.

[srid]

Note: we should try to use the home-manager installed git for this, not macOS's git (which is not fully installed by default)