feat(templates): add rust-pkg, simplify templates

templates/blank/flake.nix

···
       forAllSystems = genAttrs [ "x86_64-linux" "aarch64-linux" "aarch64-darwin" ];
       forAllPkgs = function: forAllSystems (system: function pkgs.${system});
 
-      mkApp = (program: { type = "app"; inherit program; });
-
       pkgs = forAllSystems (system: (import nixpkgs {
         inherit system;
         overlays = [ ];
···
     {
       formatter = forAllPkgs (pkgs: pkgs.nixpkgs-fmt);
 
-      packages = forAllPkgs (pkgs: rec {
-        # default = app;
-        # app = pkgs.callPackage ./package.nix { inherit gitignore; };
-      });
-      apps = forAllSystems (system: rec {
-        # default = app;
-        # app = mkApp (pkgs.getExe self.packages.${system}.app);
-      });
-
       devShells = forAllPkgs (pkgs:
         with pkgs.lib;
-        let
-          # key = value;
-        in
         {
           default = pkgs.mkShell rec {
             nativeBuildInputs = with pkgs; [
···
             ];
 
             LD_LIBRARY_PATH = makeLibraryPath buildInputs;
-
-            # ENV_VAR = "true";
           };
         });
     };

templates/c/flake.nix

···
       forAllSystems = genAttrs [ "x86_64-linux" "aarch64-linux" "aarch64-darwin" ];
       forAllPkgs = function: forAllSystems (system: function pkgs.${system});
 
-      mkApp = (program: { type = "app"; inherit program; });
-
       pkgs = forAllSystems (system: (import nixpkgs {
         inherit system;
         overlays = [ ];
···
     {
       formatter = forAllPkgs (pkgs: pkgs.nixpkgs-fmt);
 
-      packages = forAllPkgs (pkgs: rec {
-        # default = app;
-        # app = pkgs.callPackage ./package.nix { inherit gitignore; };
-      });
-      apps = forAllSystems (system: rec {
-        # default = app;
-        # app = mkApp (pkgs.getExe self.packages.${system}.app);
-      });
-
       devShells = forAllPkgs (pkgs:
         with pkgs.lib;
         let
           mkClangShell = pkgs.mkShell.override { stdenv = pkgs.clangStdenv; };
-
-          # key = value;
         in
         {
           default = mkClangShell rec {
···
               clang-tools
             ] ++ (with llvmPackages; [ clang lldb ]);
 
-            buildInputs = with pkgs; [
-              # openssl
-            ];
+            buildInputs = with pkgs; [ ];
 
             LD_LIBRARY_PATH = makeLibraryPath buildInputs;
-
-            # ENV_VAR = "true";
           };
         });
     };

templates/default.nix

···
     description = "Flake for Rust setup";
     welcomeText = "`direnv allow`";
   };
+
+  rust-pkg = {
+    path = ./rust-pkg;
+    description = "Flake for Rust setup with intent to package";
+    welcomeText = "`direnv allow`";
+  };
 }

templates/rust-pkg/.envrc

···
+use flake

templates/rust-pkg/flake.nix

···
+{
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.11";
+
+    rust-overlay.url = "github:oxalica/rust-overlay";
+    rust-overlay.inputs.nixpkgs.follows = "nixpkgs";
+
+    gitignore.url = "github:hercules-ci/gitignore.nix";
+    gitignore.inputs.nixpkgs.follows = "nixpkgs";
+  };
+
+  outputs = { self, nixpkgs, rust-overlay, gitignore }:
+    let
+      inherit (nixpkgs.lib) genAttrs;
+
+      forAllSystems = genAttrs [ "x86_64-linux" "aarch64-linux" "aarch64-darwin" ];
+      forAllPkgs = function: forAllSystems (system: function pkgs.${system});
+
+      mkApp = (program: { type = "app"; inherit program; });
+
+      pkgs = forAllSystems (system: (import nixpkgs {
+        inherit system;
+        overlays = [ (import rust-overlay) ];
+      }));
+    in
+    {
+      formatter = forAllPkgs (pkgs: pkgs.nixpkgs-fmt);
+
+      packages = forAllPkgs (pkgs: rec {
+        default = app;
+        app = pkgs.callPackage ./package.nix { inherit gitignore; };
+      });
+      apps = forAllSystems (system: rec {
+        default = app;
+        app = mkApp (pkgs.getExe self.packages.${system}.app);
+      });
+
+      devShells = forAllPkgs (pkgs:
+        with pkgs.lib;
+        let
+          file-rust-toolchain = pkgs.rust-bin.fromRustupToolchainFile ./rust-toolchain.toml;
+          rust-toolchain = file-rust-toolchain.override { extensions = [ "rust-analyzer" ]; };
+        in
+        {
+          default = pkgs.mkShell rec {
+            nativeBuildInputs = with pkgs; [
+              pkg-config
+              rust-toolchain
+              act
+            ];
+
+            buildInputs = with pkgs; [ ];
+
+            RUST_SRC_PATH = pkgs.rustPlatform.rustLibSrc;
+            LD_LIBRARY_PATH = makeLibraryPath buildInputs;
+
+            # RUST_LOG = "";
+          };
+        });
+    };
+}

templates/rust-pkg/rust-toolchain.toml

···
+[toolchain]
+channel = "stable"

templates/rust-pkg/rustfmt.toml

···
+hard_tabs = true

templates/rust/flake.nix

···
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.11";
 
-    rust-overlay = {
-      url = "github:oxalica/rust-overlay";
-      inputs.nixpkgs.follows = "nixpkgs";
-    };
-
-    gitignore = {
-      url = "github:hercules-ci/gitignore.nix";
-      inputs.nixpkgs.follows = "nixpkgs";
-    };
+    rust-overlay.url = "github:oxalica/rust-overlay";
+    rust-overlay.inputs.nixpkgs.follows = "nixpkgs";
   };
 
-  outputs = { self, nixpkgs, rust-overlay, gitignore }:
+  outputs = { self, nixpkgs, rust-overlay }:
     let
       inherit (nixpkgs.lib) genAttrs;
 
       forAllSystems = genAttrs [ "x86_64-linux" "aarch64-linux" "aarch64-darwin" ];
       forAllPkgs = function: forAllSystems (system: function pkgs.${system});
 
-      mkApp = (program: { type = "app"; inherit program; });
-
       pkgs = forAllSystems (system: (import nixpkgs {
         inherit system;
         overlays = [ (import rust-overlay) ];
···
     {
       formatter = forAllPkgs (pkgs: pkgs.nixpkgs-fmt);
 
-      packages = forAllPkgs (pkgs: rec {
-        default = app;
-        app = pkgs.callPackage ./package.nix { inherit gitignore; };
-      });
-      apps = forAllSystems (system: rec {
-        default = app;
-        app = mkApp (pkgs.getExe self.packages.${system}.app);
-      });
-
       devShells = forAllPkgs (pkgs:
         with pkgs.lib;
         let
···
               rust-toolchain
               act
             ];
+
             buildInputs = with pkgs; [ ];
 
             RUST_SRC_PATH = pkgs.rustPlatform.rustLibSrc;