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-rw-r--r--flake.nix4
-rw-r--r--machines/bismuth/default.nix8
-rw-r--r--modules/common.nix10
3 files changed, 19 insertions, 3 deletions
diff --git a/flake.nix b/flake.nix
index 0d04ff9..7075583 100644
--- a/flake.nix
+++ b/flake.nix
@@ -32,7 +32,9 @@
(machine: nixpkgs.lib.nixosSystem {
inherit system;
- specialArgs = inputs // packageSets;
+ specialArgs = inputs // packageSets // {
+ me = machine;
+ };
modules = [
./machines/${machine}
diff --git a/machines/bismuth/default.nix b/machines/bismuth/default.nix
index 8dbdd14..2663703 100644
--- a/machines/bismuth/default.nix
+++ b/machines/bismuth/default.nix
@@ -13,6 +13,14 @@
networking.hostName = "Bismuth";
+ # run binary cache for slower machines
+ services.nix-serve = {
+ enable = true;
+ # note: can we get this value from somewhere?
+ bindAddress = "100.85.58.31"; # bismuth tailnet ip
+ secretKeyFile = "/var/bismuth-cache.pem";
+ };
+
# expose vm web interface to tailnet
services.tailscale.extraUpFlags = [
"--advertise-routes=192.168.122.100/32"
diff --git a/modules/common.nix b/modules/common.nix
index e7de738..f586579 100644
--- a/modules/common.nix
+++ b/modules/common.nix
@@ -1,4 +1,4 @@
-{ config, pkgs, unstablePkgs, auxiliaryPkgs, ... }:
+{ me, config, lib, pkgs, unstablePkgs, auxiliaryPkgs, ... }:
{
imports = [
@@ -13,7 +13,13 @@
boot.kernelPackages = pkgs.linuxPackages_latest;
- nix.settings.experimental-features = [ "flakes" "nix-command" ];
+ nix.settings = {
+ experimental-features = [ "flakes" "nix-command" ];
+ } // lib.optionalAttrs (me != "bismuth") {
+ # add the bismuth binary cache, if we're not bismuth;
+ substituters = [ "http://bismuth:5000" ];
+ trusted-public-keys = [ "bismuth-1:XW9nsNsccipbmdfchyb3YIIWNT058iSpHLwlj1xgB7A=" ];
+ };
services.envfs.enable = true;
virtualisation.libvirtd.enable = true;