From 46d07da40468657d31450311c529f3633d9ae6ed Mon Sep 17 00:00:00 2001
From: Ryan Lahfa <ryan@dgnum.eu>
Date: Sun, 8 Sep 2024 00:50:29 +0200
Subject: [PATCH] fix(hive): misc fixes regarding the nixpkgs usage

Previously, we were using <nixpkgs> actually, we fixed liminix and this
file to ensure that we are instantiating the right nixpkgs.

This helps to deal with unexpected mass rebuilds.

Signed-off-by: Ryan Lahfa <ryan@dgnum.eu>
---
 hive.nix | 61 +++++++++++++++++++++++++++++++++++---------------------
 1 file changed, 38 insertions(+), 23 deletions(-)

diff --git a/hive.nix b/hive.nix
index 71180d5..139b978 100644
--- a/hive.nix
+++ b/hive.nix
@@ -46,24 +46,27 @@ let
       inherit version;
     };
 
+  mkNixpkgsConfigPerSystem =
+    system: _:
+    if system == "nixos" then
+      { }
+    else
+      (import "${sources.liminix}/devices/${system}").system
+      // {
+        overlays = [ (import "${sources.liminix}/overlay.nix") ];
+        config = {
+          allowUnsupportedSystem = true; # mipsel
+          permittedInsecurePackages = [
+            "python-2.7.18.8" # Python < 3 is needed for kernel backports.
+          ];
+        };
+      };
+
   # Instanciate a specialized version of nixpkgs
   mkSystemNixpkgs =
     system: version:
     let
-      args =
-        if system == "nixos" then
-          { }
-        else
-          (import "${sources.liminix}/devices/${system}").system
-          // {
-            overlays = [ (import "${sources.liminix}/overlay.nix") ];
-            config = {
-              allowUnsupportedSystem = true; # mipsel
-              permittedInsecurePackages = [
-                "python-2.7.18.8" # Python < 3 is needed for kernel backports.
-              ];
-            };
-          };
+      args = mkNixpkgsConfigPerSystem system version;
     in
     import (mkNixpkgs' version) args;
 
@@ -93,19 +96,31 @@ in
 {
   registry = {
     zyxel-nwa50ax = {
-      evalConfig = import "${sources.liminix}/lib/eval-config.nix" { nixpkgs = sources.nixos-unstable; };
+      evalConfig = import "${sources.liminix}/lib/eval-config.nix" {
+        nixpkgs = sources.nixos-unstable;
+      };
 
       defaults = _: {
-        nixpkgs.hostPlatform = {
-          config = "mipsel-unknown-linux-musl";
-          gcc = {
-            abi = "32";
-            arch = "mips32"; # mips32r2?
+        nixpkgs = {
+          source = sources.nixos-unstable;
+          config = {
+            allowUnsupportedSystem = true; # mipsel
+            permittedInsecurePackages = [
+              "python-2.7.18.8" # Python < 3 is needed for kernel backports.
+            ];
           };
+          hostPlatform = {
+            config = "mipsel-unknown-linux-musl";
+            gcc = {
+              abi = "32";
+              arch = "mips32"; # mips32r2?
+            };
+          };
+
+          # It's impure, but who cares?
+          # Can Flakes do that?
+          buildPlatform = builtins.currentSystem;
         };
-        # It's impure, but who cares?
-        # Can Flakes do that?
-        nixpkgs.buildPlatform = builtins.currentSystem;
       };
     };