Add packaging and release automation

flake.nix

@@ -0,0 +1,50 @@
+{
+  description = "vcom terminal file manager";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, nixpkgs, flake-utils }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = import nixpkgs { inherit system; };
+        lib = pkgs.lib;
+        package = pkgs.buildGoModule {
+          pname = "vcom";
+          version = "0.1.0";
+          src = ./.;
+          vendorHash = null;
+
+          subPackages = [ "cmd/vcom" ];
+
+          ldflags = [
+            "-s"
+            "-w"
+          ];
+
+          meta = with lib; {
+            description = "Terminal file manager inspired by Midnight Commander";
+            homepage = "https://github.com/vrubelroman/vcom";
+            license = licenses.mit;
+            mainProgram = "vcom";
+            platforms = platforms.linux;
+          };
+        };
+      in {
+        packages.default = package;
+
+        apps.default = {
+          type = "app";
+          program = "${package}/bin/vcom";
+        };
+
+        devShells.default = pkgs.mkShell {
+          packages = with pkgs; [
+            go
+            gopls
+          ];
+        };
+      });
+}