% git clone https://github.com/svenpeter42/fastfilters.git
% cd fastfilters
% mkdir build
% cmake ..
% make
% make install
% conda install -c ilastik fastfilters
% git clone https://github.com/svenpeter42/fastfilters.git
% cd fastfilters/pkg/gentoo/sci-libs/fastfilters
% sudo ebuild fastfilters-9999.ebuild manifest clean merge