nixos-build-all

configuration.nix

@@ -1,4 +1,9 @@
-{ config, pkgs, ... }:
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
 {
   imports = [
     ./overlays
@@ -10,6 +15,7 @@
   # Bootloader.
   boot = {
     loader.efi.canTouchEfiVariables = true;
+    kernelPackages = lib.mkDefault pkgs.linuxPackages_zen;
   };
 
   services.logrotate.checkConfig = false; # fixme: actually needed?

fake_flake.nix

@@ -71,6 +71,21 @@ in
     distro = "${distroName} ${version} (${codeName}) ${system}";
   };
 
+  environment.systemPackages =
+    with pkgs;
+    with lib;
+    [
+      (writeShellScriptBin "nixos-build-all" (
+        concatLines (
+          map (
+            n:
+            "NIXOS_TARGET_HOST=${n} nixos-rebuild build --upgrade --show-trace"
+            + optionalString (elem nix-output-monitor config.environment.systemPackages) " |& ${lib.getExe pkgs.nix-output-monitor}"
+          ) (attrNames host_modules)
+        )
+      ))
+    ];
+
   nixpkgs.pkgs =
     let
       src = nivSources.nixpkgs;

specific/grimm-nixos-laptop/configuration.nix

@@ -9,10 +9,6 @@
 
   age.identityPaths = [ "/home/grimmauld/.ssh/id_ed25519" ];
 
-  boot = {
-    kernelPackages = pkgs.linuxPackages_zen;
-  };
-
   grimmShared = {
     tooling = {
       pass = true;