so here's trying to break that trend then: Koma 0.11 was released yesterday. It now has a mostly complete backend on K/Native that uses a low-overhead zero-copy lapack/blas implementation. in addition a lot of the boxing (i.e. slowness) that was present in the previous is cleaned up, so functions like Matrix<Double>.map{it+1} are much faster. i've got more changes coming on eliminating boxing for the rest of the primitives too