build(flake): split into flake modules

nix/wordle-solver-wasm.nix

@@ -1,39 +1,47 @@
 {
-  rustPlatform,
-  buildPackages,
-  lld,
-  name ? "wordle-solver",
-  ...
-}:
-rustPlatform.buildRustPackage {
-  inherit name;
+  perSystem = {pkgs, ...}: let
+    utils = import ./utils.nix;
+    toolchain-crosspkgs = utils.toolchain-crosspkgs pkgs;
+    drv = {
+      rustPlatform,
+      buildPackages,
+      lld,
+      name ? "wordle-solver",
+      ...
+    }:
+      rustPlatform.buildRustPackage {
+        inherit name;
 
-  src = ../.; # Or your source location
-  cargoLock.lockFile = ../Cargo.lock;
+        src = ../.; # Or your source location
+        cargoLock.lockFile = ../Cargo.lock;
 
-  # Disable tests since they can't run on WASM
-  doCheck = false;
+        # Disable tests since they can't run on WASM
+        doCheck = false;
 
-  # Required dependencies for WASM builds
-  depsBuildBuild = [
-    buildPackages.stdenv.cc
-    lld # Needed for wasm-ld
-  ];
+        # Required dependencies for WASM builds
+        depsBuildBuild = [
+          buildPackages.stdenv.cc
+          lld # Needed for wasm-ld
+        ];
 
-  cargoBuildFlags = [
-    "--lib"
-    "--features"
-    "wasm-bindgen"
-  ];
+        cargoBuildFlags = [
+          "--lib"
+          "--features"
+          "wasm-bindgen"
+        ];
 
-  # Configure rustc for WASM
-  env = {
-    RUSTFLAGS = ''--cfg=web_sys_unstable_apis -C linker=wasm-ld'';
+        # Configure rustc for WASM
+        env = {
+          RUSTFLAGS = ''--cfg=web_sys_unstable_apis -C linker=wasm-ld'';
+        };
+
+        # Copy the WASM file to the output
+        installPhase = ''
+          mkdir -p $out/lib
+          cp target/wasm32-unknown-unknown/release/*.wasm $out/lib/
+        '';
+      };
+  in {
+    packages.wordle-solver-wasm = toolchain-crosspkgs.callPackage drv {};
   };
-
-  # Copy the WASM file to the output
-  installPhase = ''
-    mkdir -p $out/lib
-    cp target/wasm32-unknown-unknown/release/*.wasm $out/lib/
-  '';
 }