"#"

flake.nix

@@ -0,0 +1,83 @@
+{
+  description = "josh-sync: bidirectional monorepo ↔ subrepo sync via josh-proxy";
+
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+
+  outputs = { self, nixpkgs }:
+    let
+      forAllSystems = nixpkgs.lib.genAttrs [
+        "x86_64-linux"
+        "aarch64-linux"
+        "x86_64-darwin"
+        "aarch64-darwin"
+      ];
+    in
+    {
+      packages = forAllSystems (system:
+        let
+          pkgs = nixpkgs.legacyPackages.${system};
+          version = builtins.replaceStrings [ "\n" ] [ "" ] (builtins.readFile ./VERSION);
+        in
+        {
+          default = pkgs.stdenv.mkDerivation {
+            pname = "josh-sync";
+            inherit version;
+            src = ./.;
+
+            nativeBuildInputs = [ pkgs.makeWrapper ];
+
+            installPhase = ''
+              mkdir -p $out/{bin,lib}
+              cp lib/*.sh $out/lib/
+              cp bin/josh-sync $out/bin/
+              chmod +x $out/bin/josh-sync
+
+              wrapProgram $out/bin/josh-sync \
+                --set JOSH_SYNC_ROOT "$out" \
+                --prefix PATH : ${pkgs.lib.makeBinPath [
+                  pkgs.bash
+                  pkgs.git
+                  pkgs.curl
+                  pkgs.jq
+                  pkgs.yq-go
+                  pkgs.openssh
+                  pkgs.coreutils
+                  pkgs.findutils
+                  pkgs.rsync
+                ]}
+            '';
+
+            meta = {
+              description = "Bidirectional monorepo ↔ subrepo sync via josh-proxy";
+              license = pkgs.lib.licenses.mit;
+              mainProgram = "josh-sync";
+            };
+          };
+        });
+
+      # devenv module for consumers
+      devenvModules.default = { pkgs, ... }: {
+        packages = [ self.packages.${pkgs.system}.default ];
+        dotenv.disableHint = true;
+      };
+
+      # Dev shell for library contributors
+      devShells = forAllSystems (system:
+        let pkgs = nixpkgs.legacyPackages.${system};
+        in {
+          default = pkgs.mkShell {
+            packages = [
+              pkgs.bash
+              pkgs.git
+              pkgs.curl
+              pkgs.jq
+              pkgs.yq-go
+              pkgs.openssh
+              pkgs.shellcheck
+              pkgs.bats
+              pkgs.rsync
+            ];
+          };
+        });
+    };
+}