Current higher-order calculations heavily rely on publicly available tools. These are not necessarily computer programs, but it is anything that aids in different steps of calculations, e.g. also
includes published loop-amplitudes, integrals and algorithms that eventually lead to important automatization. In these proceedings we give an overview of tools used for perturbative precision calculations. The availability, composability and hackability of such tools are what lets our field flourish. And while our field is already positively standing out in the development of such tools,
we would like to stress their importance for the success of future developments.