  Quantum transport has far-reaching applications in modern electronics as it
enables the control of currents in nanoscale systems such as quantum dots. In
this paper we introduce tinie: a state-of-the-art quantum transport simulation
framework, which can efficiently perform first-principle calculations based on
the Landauer-B\"uttiker formalism. The computational repertoire of tinie
includes calculations of transmission, conductivity, and currents running
through arbitrary multi-terminal two-dimensional transport devices, with
additional tools that enable the computation of the local density of states.
The generality of tinie ranges from wide-band approximation calculations to
investigating systems subject to an external magnetic field. The future
prospects of tinie include the simulation of, e.g., two-dimensional cavities,
quantum dots, or molecular junctions. The package is written in Python 3.6, and
its well-documented modular structure is designed with an intent to create a
platform suited for continuous expansion and development. With tinie it is
possible to obtain specific information about the effects of impurities and
imperfections in quantum devices, particularly between ballistic and diffusive
transport regimes.
