**Bug description / feature request:** Since the psydac kernels are compiled with C at install, this causes an error when compiling struphy with fortran. **Expected behavior:** `struphy compile --language fortran` should also compile all psydac kernels with fortran **Proposed solution:** Maybe call `psydac_accelerate.py` with a `--language` flag when running `struphy compile` Solution here: https://github.com/max-models/psydac-for-struphy/pull/7