missing libraries for ghc and cabal

I just installed on a raspi4 (with debian from https://raspi.debian.net/tested-images/) and found the the architecture is recognized (after installing curl (;-)). uname says aarch64.

I use the most current distributions (bullseye or ubuntu 20.10) and found libraries missing: llvm and libnuma-dev resp, llnuma-dev required to compile and link.

I also found that .ghc-up/bin was not added to the path.

thank you for your efforts to maintain the haskell toolchain!