Merge pull request NixOS#9690 from obsidiansystems/nixos-23.05-small-…

…again

flake: Go back to regular `nixos-23.05-small`
(cherry picked from commit 1ed245a)
Change-Id: I33f5fe20cd6bc658a461f560e458b440b3b7e18e

flake.nix

@@ -1,13 +1,7 @@
 {
   description = "The purely functional package manager";
 
-  # TODO Go back to nixos-23.05-small once
-  # https://github.com/NixOS/nixpkgs/pull/271202 is merged.
-  #
-  # Also, do not grab arbitrary further staging commits. This PR was
-  # carefully made to be based on release-23.05 and just contain
-  # rebuild-causing changes to packages that Nix actually uses.
-  inputs.nixpkgs.url = "github:NixOS/nixpkgs/staging-23.05";
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.05-small";
   inputs.nixpkgs-regression.url = "github:NixOS/nixpkgs/215d4d0fd80ca5163643b03a33fde804a29cc1e2";
   inputs.lowdown-src = { url = "github:kristapsdz/lowdown"; flake = false; };
   inputs.flake-compat = { url = "github:edolstra/flake-compat"; flake = false; };