From 2c102d19c0283b3a95214bd17440ee94e2c75154 Mon Sep 17 00:00:00 2001
From: Michael Hoang <enzime@users.noreply.github.com>
Date: Fri, 1 Apr 2022 01:34:26 +1100
Subject: [PATCH] nixos/qemu-vm: Set `mainProgram` for `nix run`

---
 nixos/modules/virtualisation/qemu-vm.nix | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/nixos/modules/virtualisation/qemu-vm.nix b/nixos/modules/virtualisation/qemu-vm.nix
index dacbb64a2dac..760f69121612 100644
--- a/nixos/modules/virtualisation/qemu-vm.nix
+++ b/nixos/modules/virtualisation/qemu-vm.nix
@@ -961,7 +961,10 @@ in
 
     services.qemuGuest.enable = cfg.qemu.guestAgent.enable;
 
-    system.build.vm = pkgs.runCommand "nixos-vm" { preferLocalBuild = true; }
+    system.build.vm = pkgs.runCommand "nixos-vm" {
+      preferLocalBuild = true;
+      meta.mainProgram = "run-${config.system.name}-vm";
+    }
       ''
         mkdir -p $out/bin
         ln -s ${config.system.build.toplevel} $out/system