AcceleratedDCTs v0.5.0
FFTW is no longer a hard dependency. The FFTW-based DCT-I implementation has been moved into a package extension (FFTWExt), making the core package lighter and more modular.
Breaking changes: FFTW is no longer a hard dependency. Users must explicitly using FFTW to activate the optimized CPU DCT-I path. Without it, plan_dct1 on Array falls back to the slower separable implementation.