feat(nix): add nix build

flake.nix

@@ -7,6 +7,8 @@
     { self, ... }@inputs:
 
     let
+      pname = "spotiflac-cli";
+      version = "7.0.9";
       goVersion = 24; # Change this to update the whole stack
 
       supportedSystems = [
@@ -26,6 +28,18 @@
             };
           }
         );
+
+      pkgs = import inputs.nixpkgs {
+        system = "x86_64-linux";
+        overlays = [ inputs.self.overlays.default ];
+      };
+
+      spotiflac = pkgs.fetchFromGitHub {
+        owner = "afkarxyz";
+        repo = "SpotiFLAC";
+        tag = "v${version}";
+        hash = "sha256-VHYof17C+eRoZfssXRQpbB8GXlcfPhyRiWltM6yDqe0=";
+      };
     in
     {
       overlays.default = final: prev: {
@@ -43,5 +57,26 @@
           };
         }
       );
+      packages = forEachSupportedSystem (
+        { pkgs }:
+        {
+          default = pkgs.buildGoModule (finalAttrs: {
+            inherit pname version;
+            src = ./.;
+            vendorHash = "sha256-EpGgfiCqJjHEOphV2x8FmXeIFls7eq2NVxb/or4NLUo=";
+
+            subPackages = [
+              "."
+            ];
+
+            postPatch = ''
+              cp -r ${spotiflac} ./SpotiFLAC/
+              sed -i "s/git clone https:\/\/github.com\/afkarxyz\/SpotiFLAC.git//g" ./tools/fetch_spotiflac_backend.sh
+              sed -i "s/rm -rf SpotiFLAC//g" ./tools/fetch_spotiflac_backend.sh
+              ./tools/fetch_spotiflac_backend.sh
+            '';
+          });
+        }
+      );
     };
 }

go.mod

@@ -2,6 +2,8 @@ module github.com/Superredstone/spotiflac-cli
 
 go 1.24.4
 
+replace github.com/Superredstone/spotiflac-cli/app => ./app
+
 require (
 	github.com/bogem/id3v2/v2 v2.1.4 // indirect
 	github.com/boombuler/barcode v1.0.1-0.20190219062509-6c824513bacc // indirect

tools/fetch_spotiflac_backend.sh

@@ -6,7 +6,7 @@ FOLDER=lib
 
 rm -rf lib/
 git clone https://github.com/afkarxyz/SpotiFLAC.git
-mv SpotiFLAC/backend/ lib/
+cp -r SpotiFLAC/backend/ lib/
 mkdir -p app/ 
 cp SpotiFLAC/app.go app/app.go
 rm -rf SpotiFLAC
@@ -14,6 +14,9 @@ rm -rf SpotiFLAC
 sed -i "s/package main/package app/g" app/app.go
 sed -i "s/\"spotiflac\/backend\"/backend \"github.com\/Superredstone\/spotiflac-cli\/lib\"/g" app/app.go
 
+# Nix shenanigans
+chmod -R 777 lib
+
 for i in $(ls lib/); do
 	sed -i "s/package backend/package $FOLDER/g" $FOLDER/$i
 done