[iopq@laptop:~/sw/proxy]$ stack build
these 4 paths will be fetched (207.20 MiB download, 2597.00 MiB unpacked):
  /nix/store/6xdv0kj7ycq56l9sqip2hmxp237j78h4-ghc-9.10.3
  /nix/store/fggv6nijg6kb8142jzpnhp343gp07sly-ghc-9.10.3-doc
  /nix/store/p921cknvlpr9cwqwy0xdl2m9bqclq2y2-ncurses-6.5-dev
  /nix/store/bbi75vnghbrrn7685160h8p6md5lzjy0-numactl-2.0.18-dev
copying path '/nix/store/fggv6nijg6kb8142jzpnhp343gp07sly-ghc-9.10.3-doc' from 'https://cache.nixos.org'...
copying path '/nix/store/p921cknvlpr9cwqwy0xdl2m9bqclq2y2-ncurses-6.5-dev' from 'https://cache.nixos.org'...
copying path '/nix/store/bbi75vnghbrrn7685160h8p6md5lzjy0-numactl-2.0.18-dev' from 'https://cache.nixos.org'...
copying path '/nix/store/6xdv0kj7ycq56l9sqip2hmxp237j78h4-ghc-9.10.3' from 'https://cache.nixos.org'...
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