first commit

flake.nix

@@ -0,0 +1,115 @@
+{
+  description = "Cross-platform TUI music player development shell";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+  };
+
+  outputs =
+    { nixpkgs, ... }:
+    let
+      systems = [
+        "aarch64-darwin"
+        "x86_64-darwin"
+        "aarch64-linux"
+        "x86_64-linux"
+      ];
+
+      forAllSystems = nixpkgs.lib.genAttrs systems;
+
+      perSystem =
+        system:
+        let
+          pkgs = import nixpkgs { inherit system; };
+          lib = pkgs.lib;
+
+          linuxAudioRuntime = lib.optionals pkgs.stdenv.isLinux [
+            pkgs.alsa-lib
+            pkgs.pulseaudio
+          ];
+
+          tui-build = pkgs.writeShellApplication {
+            name = "tui-build";
+            runtimeInputs = [
+              pkgs.cmake
+              pkgs.ninja
+            ];
+            text = ''
+              cmake -S . -B build -G Ninja
+              cmake --build build
+            '';
+          };
+
+          tui-run = pkgs.writeShellApplication {
+            name = "tui-run";
+            runtimeInputs = [
+              tui-build
+            ];
+            text = ''
+              tui-build
+              exec ./build/tui-music-player "$@"
+            '';
+          };
+
+          tui-clean = pkgs.writeShellApplication {
+            name = "tui-clean";
+            text = ''
+              rm -rf build tui-music-player tui-music-player.exe
+            '';
+          };
+        in
+        {
+          packages.default = pkgs.stdenv.mkDerivation {
+            pname = "tui-music-player";
+            version = "0.1.0";
+            src = ./.;
+
+            nativeBuildInputs = [
+              pkgs.cmake
+              pkgs.ninja
+            ];
+
+            buildInputs = linuxAudioRuntime;
+
+            cmakeFlags = [
+              "-G"
+              "Ninja"
+            ];
+
+            installPhase = ''
+              runHook preInstall
+              install -Dm755 tui-music-player "$out/bin/tui-music-player"
+              runHook postInstall
+            '';
+          };
+
+          devShells.default = pkgs.mkShell {
+            packages =
+              [
+                pkgs.cmake
+                pkgs.ninja
+                pkgs.gnumake
+                pkgs.pkg-config
+                pkgs.clang-tools
+                tui-build
+                tui-run
+                tui-clean
+              ]
+              ++ linuxAudioRuntime;
+
+            shellHook = ''
+              mkdir -p music
+              echo "TUI Music Player devshell"
+              echo "  tui-build  - configure and build with CMake + Ninja"
+              echo "  tui-run    - build, then run ./build/tui-music-player"
+              echo "  tui-clean  - remove generated build outputs"
+              echo "Put audio files in ./music, then run: tui-run"
+            '';
+          };
+        };
+    in
+    {
+      packages = forAllSystems (system: (perSystem system).packages);
+      devShells = forAllSystems (system: (perSystem system).devShells);
+    };
+}