What actually makes a good minimalist gift for your sister?
Start by eliminating mismatches: decorative objects whose main purpose is simply to exist on a shelf. Then narrow the list around high-utility replacements, compact quality items, consumables and gifts that do not create long-term clutter. Because this is for your sister, keep the things she repeatedly comes back to in her free time in mind and avoid broad “gifts for women” ideas with no connection to her specific interests. A small but precisely matched upgrade can be more memorable than a larger generic present.
The strongest gift ideas usually come from the person’s real habits: what they already use, what they talk about and what would make an existing interest better.