From 0583eb2f07af1aae1062025331d7132dc2639dfe Mon Sep 17 00:00:00 2001
From: Luke Granger-Brown <hg@lukegb.com>
Date: Tue, 17 Jan 2023 21:49:53 +0000
Subject: [PATCH] clouvider-lon01: enable aarch64 emulation

---
 ops/nixos/clouvider-lon01/default.nix      |  3 +++
 ops/nixos/lib/macmini-distributed.nix      |  9 ++++++++-
 ops/nixos/lib/oracle-lon01-distributed.nix | 20 ++++++++++++++++++++
 3 files changed, 31 insertions(+), 1 deletion(-)
 create mode 100644 ops/nixos/lib/oracle-lon01-distributed.nix

diff --git a/ops/nixos/clouvider-lon01/default.nix b/ops/nixos/clouvider-lon01/default.nix
index 34e672085e..dc5b58a3ce 100644
--- a/ops/nixos/clouvider-lon01/default.nix
+++ b/ops/nixos/clouvider-lon01/default.nix
@@ -10,6 +10,7 @@
     ../lib/minotarproxy.nix
     ../lib/whitby-distributed.nix
     ../lib/macmini-distributed.nix
+    ../lib/oracle-lon01-distributed.nix
     ../lib/quotes.bfob.gg.nix
     ../lib/coredns/default.nix
   ];
@@ -314,5 +315,7 @@
     depot.ops.factorio.multiworld
   ];
 
+  boot.binfmt.emulatedSystems = [ "aarch64-linux" ];
+
   system.stateVersion = "20.09";
 }
diff --git a/ops/nixos/lib/macmini-distributed.nix b/ops/nixos/lib/macmini-distributed.nix
index 69c0752369..cc2fb53373 100644
--- a/ops/nixos/lib/macmini-distributed.nix
+++ b/ops/nixos/lib/macmini-distributed.nix
@@ -5,13 +5,20 @@
 { lib, ... }:
 {
   # Distributed builds!
-  nix.buildMachines = lib.mkAfter [ {
+  nix.buildMachines = lib.mkAfter [{
     hostName = "mac-mini";
     system = "x86_64-darwin";
     maxJobs = 4;
     speedFactor = 1;
     supportedFeatures = [ ];
     mandatoryFeatures = [ ];
+  } {
+    hostName = "mac-mini";
+    system = "aarch64-darwin";
+    maxJobs = 4;
+    speedFactor = 1;
+    supportedFeatures = [ ];
+    mandatoryFeatures = [ ];
   }];
   nix.distributedBuilds = true;
   nix.extraOptions = ''
diff --git a/ops/nixos/lib/oracle-lon01-distributed.nix b/ops/nixos/lib/oracle-lon01-distributed.nix
new file mode 100644
index 0000000000..448c6fd146
--- /dev/null
+++ b/ops/nixos/lib/oracle-lon01-distributed.nix
@@ -0,0 +1,20 @@
+# SPDX-FileCopyrightText: 2020 Luke Granger-Brown <depot@lukegb.com>
+#
+# SPDX-License-Identifier: Apache-2.0
+
+{ lib, ... }:
+{
+  # Distributed builds!
+  nix.buildMachines = lib.mkAfter [{
+    hostName = "oracle-lon01";
+    system = "aarch64-linux";
+    maxJobs = 4;
+    speedFactor = 1;
+    supportedFeatures = [ ];
+    mandatoryFeatures = [ ];
+  }];
+  nix.distributedBuilds = true;
+  nix.extraOptions = ''
+    builders-use-substitutes = true
+  '';
+}