Is there a way to generate 'pruned' output

[expipiplus1]

The file generated by stack2nix is reasonably large as it contains every package in stackage. It would be nice if this tool could generate a smaller file which comprises just the dependency closure of the stack project.

[domenkozar]

It's really tricky since stack and nix have different dependency resolutions (due to the way flags are enabled, etc). The only way would be to use hnix to generate a flat list of packages needed for top-level packages and prune the rest.

[domenkozar]

#111 would be a step into this direction.