I am not fond of using one-off commands to add a requirement. It is how things get lost. I update my pyproject.toml file, then apply these changes. In doing so, I have properly captured the requirements and the changes for posterity.
I thought this was about texture mapping.
Isn't adding dependencies, groups or not, as simple as opening up the pyproject.toml file and adding it to one of the lists?
Dependency groups were not supported in uv before version 0.4.7, no matter how hard you edited pyproject.toml by hand.