Hi all, I've recently created a Yocto meta layer to add beats in custom images. The meta layer is only software layer with dependencies on poky and meta-openembedded. I've built and tested on a nanopi-k1-plus (allwinner H5 SoC) and also a nanopi-neo3 (RK3328 SoC) which are both aarch64, but I assume that it would also work for armhf.
For those who are interested the repo is here: