initial commit

source/new-flake/bash-flake/flake-3.nix

@@ -0,0 +1,24 @@
+{
+  description = "what does the cow say";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs";
+  };
+
+  outputs = { self, nixpkgs }: {
+
+    devShells =
+      let
+        system = "x86_64-linux";
+        pkgs = nixpkgs.legacyPackages.${system};
+      in {
+        ${system}.default =
+            pkgs.mkShell {
+              packages = [
+                pkgs.cowsay
+              ];
+            }; # mkShell
+    }; # devShells
+
+  };
+}

source/new-flake/bash-flake/flake-4.nix

@@ -0,0 +1,50 @@
+{
+  description = "what does the cow say";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs";
+  };
+
+  outputs = { self, nixpkgs }: {
+
+    devShells =
+      let
+        system = "x86_64-linux";
+        pkgs = nixpkgs.legacyPackages.${system};
+      in {
+        ${system}.default =
+            pkgs.mkShell {
+              packages = [
+                pkgs.cowsay
+              ];
+            }; # mkShell
+    }; # devShells
+
+    packages =
+      let
+        system = "x86_64-linux";
+        pkgs = nixpkgs.legacyPackages.${system};
+      in rec {
+        ${system}.hello = pkgs.stdenv.mkDerivation {
+            name = "cow-hello";
+
+            src = ./.;
+
+            unpackPhase = "true";
+
+            buildPhase = ":";
+
+            installPhase =
+              ''
+                mkdir -p $out/bin
+                cp $src/cow-hello.sh $out/bin
+                chmod +x $out/bin/cow-hello.sh
+              '';
+
+            buildInputs = [ pkgs.cowsay ];
+          };
+          ${system}.default = hello;
+
+    }; # packages
+  };
+}

source/new-flake/bash-flake/flake.nix

@@ -0,0 +1,20 @@
+{
+  description = "what does the cow say";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs";
+  };
+
+  outputs = { self, nixpkgs }: {
+
+    devShells = {
+      x86_64-linux.default =
+        nixpkgs.legacyPackages.x86_64-linux.mkShell {
+          packages = [
+            nixpkgs.legacyPackages.x86_64-linux.cowsay
+          ];
+        }; # mkShell
+    }; # devShells
+
+  }; # outputs
+}