zlib1g-dev required

lxc launch ubuntu:20.04

getting Linux ... 5.13.0-27-generic #29 (closed)~20.04.1-Ubuntu SMP Fri Jan 14 00:32:30 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | sh

ghci works, cabal works

cabal install cabal-install

errors:

cabal: Failed to build zlib-0.6.2.3 (which is required by exe:cabal from

cabal-install-3.6.2.0).

See also https://github.com/haskell/cabal/issues/7927#issuecomment-1023645083