NIXPKG1 http://releases.strategoxt.org/pgen-with-aterm64/pgen-2.8.1pre26912-rfdpg711/MANIFEST pgen-2.8.1pre26912 x86_64-linux /nix/store/fnci0i6k3w5ms867vxdlfqyh0gaq1bg8-pgen.drv /nix/store/5p06rcg4kqfp5bak7d870wnni661b8zw-pgen