From 76f0bcd2ca2b95b846207bad8b359ebf93328968 Mon Sep 17 00:00:00 2001
From: Adam Joseph <adam@westernsemico.com>
Date: Sun, 20 Aug 2023 21:22:02 -0700
Subject: [PATCH] default.nix: warn the user if they try to build the entire
 scope

The `AAAAAASomeThingsBuildTooMuch` attrname is borrowed from a
similar attribute in nixpkgs' `top-level/all-packages.nix`.
---
 src/default.nix | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/default.nix b/src/default.nix
index 6f6fd76..8f9fe82 100644
--- a/src/default.nix
+++ b/src/default.nix
@@ -9,6 +9,12 @@ let
 
   ownerboot = { overlays }: let
     base = final: prev: {
+      AAAAAASomeThingsBuildTooMuch = throw ''
+        Please don't try to `nix-build` the entire ownerboot scope;
+        there's a lot of stuff in it that need not be built for any
+        particular target.  You probably want to add `.main` to your
+        `nix-build -A` argument.
+      '';
       inherit hostPlatform;
       nixpkgsOnBuildForHost = pkgsFun
         (nixpkgsArgs