From 1ad737e01021cf10248c22e1ac2bfd5453346c21 Mon Sep 17 00:00:00 2001
From: Graham McIntire <graham@mcintire.me>
Date: Sat, 7 Feb 2026 12:44:45 -0600
Subject: [PATCH] fix: Allow unfree packages in Nix configuration

Set allowUnfree = true to allow building towerops packages
which are marked with unfree license.
---
 flake.nix | 100 +++++++++++++++++++++++++++++++-----------------------
 1 file changed, 58 insertions(+), 42 deletions(-)

diff --git a/flake.nix b/flake.nix
index 1a287437..3b2da473 100644
--- a/flake.nix
+++ b/flake.nix
@@ -17,60 +17,76 @@
     };
   };
 
-  outputs = inputs @ { self, nixpkgs, flake-parts, systems, pre-commit-hooks }:
+  outputs =
+    inputs@{
+      self,
+      nixpkgs,
+      flake-parts,
+      systems,
+      pre-commit-hooks,
+    }:
     flake-parts.lib.mkFlake { inherit inputs; } {
       systems = import systems;
 
-      perSystem = { config, self', inputs', pkgs, system, ... }: {
-        _module.args.pkgs = import nixpkgs {
-          inherit system;
-          config = {
-            allowUnfree = false;
-          };
-          overlays = [
-            # Pin specific Elixir and Erlang versions to match .tool-versions
-            # Elixir 1.19.5-otp-28, Erlang 28.3
-            (final: prev: {
-              # Use Erlang 28 (OTP 28.3)
-              erlang = prev.erlang_28;
+      perSystem =
+        {
+          config,
+          self',
+          inputs',
+          pkgs,
+          system,
+          ...
+        }:
+        {
+          _module.args.pkgs = import nixpkgs {
+            inherit system;
+            config = {
+              allowUnfree = true; # Required for towerops (unfree license)
+            };
+            overlays = [
+              # Pin specific Elixir and Erlang versions to match .tool-versions
+              # Elixir 1.19.5-otp-28, Erlang 28.3
+              (final: prev: {
+                # Use Erlang 28 (OTP 28.3)
+                erlang = prev.erlang_28;
 
-              # Use Elixir 1.19 with Erlang 28 (1.19.5-otp-28)
-              elixir = prev.beam.packages.erlang_28.elixir_1_19;
+                # Use Elixir 1.19 with Erlang 28 (1.19.5-otp-28)
+                elixir = prev.beam.packages.erlang_28.elixir_1_19;
 
-              # Ensure beam packages use our pinned versions
-              # This affects mixRelease and all BEAM-related builds
-              beamPackages = prev.beam.packages.erlang_28;
-            })
-          ];
-        };
-
-        packages = {
-          # C NIF shared library (cached separately from Elixir code)
-          towerops-nif = pkgs.callPackage ./nix/c-nif.nix { };
-
-          # Main Elixir release
-          towerops = pkgs.callPackage ./nix/build.nix {
-            inherit (self'.packages) towerops-nif;
+                # Ensure beam packages use our pinned versions
+                # This affects mixRelease and all BEAM-related builds
+                beamPackages = prev.beam.packages.erlang_28;
+              })
+            ];
           };
 
-          # Docker OCI image (pure Nix, no Dockerfile)
-          dockerImage = pkgs.callPackage ./nix/docker.nix {
-            towerops = self'.packages.towerops;
+          packages = {
+            # C NIF shared library (cached separately from Elixir code)
+            towerops-nif = pkgs.callPackage ./nix/c-nif.nix { };
+
+            # Main Elixir release
+            towerops = pkgs.callPackage ./nix/build.nix {
+              inherit (self'.packages) towerops-nif;
+            };
+
+            # Docker OCI image (pure Nix, no Dockerfile)
+            dockerImage = pkgs.callPackage ./nix/docker.nix {
+              towerops = self'.packages.towerops;
+            };
+
+            # Default package
+            default = self'.packages.towerops;
           };
 
-          # Default package
-          default = self'.packages.towerops;
-        };
+          # Development shell with PostgreSQL, Redis, LSPs, formatters
+          devShells.default = pkgs.callPackage ./nix/shell.nix {
+            pre-commit-hooks = inputs.pre-commit-hooks.lib.${system};
+          };
 
-        # Development shell with PostgreSQL, Redis, LSPs, formatters
-        devShells.default = pkgs.callPackage ./nix/shell.nix {
-          pre-commit-hooks = inputs.pre-commit-hooks.lib.${system};
+          # Nix formatter for flake files
+          formatter = pkgs.nixfmt;
         };
 
-        # Nix formatter for flake files
-        formatter = pkgs.nixfmt;
-      };
-
       flake = {
         # Cachix binary cache configuration
         # Setup instructions: