  The operation of a quantum heat engine in finite time generally faces a
trade-off between efficiency and power. Using shortcuts to adiabaticity (STA),
this trade off can be avoided to engineer thermal machines that operate at
maximum efficiency and tunable output power. We demonstrate the use of STA to
engineer a scalable superadiabatic quantum Otto cycle and report recent
experimental progress to tailor quantum friction in finite-time quantum
thermodynamics. In the presence of quantum friction, it is also shown that the
use of a many-particle working medium can boost the performance of the quantum
machines with respect to an ensemble of single-particle thermal machines.
