nix-install

# install nix
if ! command -v nix &> /dev/null
then
    echo "nix command not found, installing..."
    curl --proto '=https' --tlsv1.2 -sSf -L https://install.determinate.systems/nix | sh -s -- install
else
    echo "nix command already exists"
fi

# install cachix
if ! command -v cachix &> /dev/null
then
    echo "cachix command not found, installing..."
    nix --experimental-features 'nix-command flakes' profile install nixpkgs#cachix
    cachix use devenv
else
    echo "cachix command already exists"
fi

# install devenv
if ! command -v devenv &> /dev/null
then
    echo "devenv command not found, installing..."
    nix --experimental-features 'nix-command flakes' profile install --accept-flake-config github:cachix/devenv/latest
else
    echo "devenv command already exists"
fi

# install direnv
if ! command -v direnv &> /dev/null
then
    echo "direnv command not found, installing..."
    nix --experimental-features 'nix-command flakes' profile install nixpkgs#direnv
else
    echo "direnv command already exists"
fi