These explicitly interior shades have an “exposed” roller around which the fabric rewinds. They have side supports for attaching either to the wall or to the ceiling.
Round or flat bottom rails (with slat in the case of a chain).
Motor. For maximum convenience, 24 volt (for small curtains) or 220 volt motors, with the possibility of radio controls, control units, Somfy sensors.
Stainless steel guide cables are available for large shades.