Pre-requisites

• Having a NixOS machine with a flake configuration.

If you’re not sure how to do this, you can follow the Creating an Archiver Appliance instance tutorial, which is a good introduction on how to make a NixOS VM.

If you have such a configuration, make sure that:

• You have the epnix flake input

• You have added epnix as an argument to your flake outputs

• You have imported EPNix’ NixOS module

For example:

flake.nix

 {
   # ...
   inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.11";
+  inputs.epnix.url = "github:epics-extensions/EPNix/nixos-24.11";

   # ...
   outputs = {
     self,
     nixpkgs,
+    epnix,
   }: {
     nixosConfigurations.nixos = nixpkgs.lib.nixosSystem {
       modules = [
+        epnix.nixosModules.nixos

         # ...
       ];
     };
   };
 }