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{
system ? builtins.currentSystem,
nixpkgs ? builtins.fetchTarball {
url = "https://github.com/NixOS/nixpkgs/archive/22.11.tar.gz";
sha256 = "11w3wn2yjhaa5pv20gbfbirvjq6i3m7pqrq2msf0g7cv44vijwgw";
}
}:
let
# use the first version in the list for each component
getMajorVersion = builtins.getEnv "PPQ_POSTGRES_VERSION";
overlay = self: super: {
# NOTE: Overlaying `postgresql` is not possible anymore, leads to
# error: infinite recursion encountered
#
# TODO: Make extension packages more easily configurable. For now
# just load whatever we've ever needed.
ppq_postgresql = super."postgresql_${getMajorVersion}".withPackages (p: [
p.postgis
]);
};
pkgs =
import nixpkgs {
inherit system;
overlays = [
overlay
];
};
in
pkgs
|