Is it possible to develop variable coeffcient solver based on Trixi.jl framework?

Hello everyone. Could someone tell me is it possible to develop a solver for solving equations with solution dependent coefficinets or coordinate dependent coefficients? For example, in the heat transfer problem, the thermal conductivity is not always a constant but dependent on temperature which is an independent variable in the heat transfer equations. I would like to know whether Trixi.jl can deal with this problem. Thanks in advance.

The issue names Trixi.jl but no files, tests, or entry points. Start by reviewing Trixi.jl's documented equation and coefficient support, then determine whether solution- or coordinate-dependent coefficients fit the framework. Done should be a clearly scoped feasibility answer or implementation plan.

Written by the indexing model from the issue text.