Test host specific nixpkgs

hosts.nix

@@ -0,0 +1,47 @@
+{ nixpkgs, nixpkgs-unstable, ... }:
+let
+  environments = {
+    "proxmox" = [
+      ./configuration/proxmox-vm
+      ./configuration/proxmox-vm/hardware-configuration.nix
+    ]; 
+  };
+  generateDefaults = hosts: builtins.mapAttrs (name: {
+    hostNixpkgs ? nixpkgs,
+    system ? "x86_64-linux",
+    pkgs ? hostNixpkgs.legacyPackages.${system},
+    environment ? "proxmox",
+    site
+  }: {
+    inherit hostNixpkgs system pkgs environment site;
+    modules = [
+      ./configuration/common
+      ./hosts/${name}
+    ] ++ (if environments ? ${environment} then environments.${environment} else []);
+  }) hosts;
+in
+  generateDefaults {
+    hydra = {
+      hostNixpkgs = nixpkgs-unstable;
+      site = "vs";
+    };
+    iperf = {
+      site = "vs";
+    };
+    jackett = {
+      site = "vs";
+    };
+    nitter = {
+      site = "vs";
+    };
+    nixos-coturn = {
+      site = "vs";
+    };
+    tor-relay = {
+      site = "vs";
+    };
+    web-public-2 = {
+      hostNixpkgs = nixpkgs-unstable;
+      site = "vs";
+    };
+  }