feat: Update flakes with proper wasm compilation

flake.nix

@@ -9,7 +9,6 @@
       url = "github:nix-community/nix-github-actions";
       inputs.nixpkgs.follows = "nixpkgs";
     };
-    crates-nix.url = "github:uttarayan21/crates.nix";
     rust-overlay = {
       url = "github:oxalica/rust-overlay";
       inputs.nixpkgs.follows = "nixpkgs";
@@ -18,6 +17,14 @@
       url = "github:rustsec/advisory-db";
       flake = false;
     };
+    crates-io-index = {
+      url = "git+https://github.com/rust-lang/crates.io-index?shallow=1";
+      flake = false;
+    };
+    crates-nix = {
+      url = "github:uttarayan21/crates.nix";
+      inputs.crates-io-index.follows = "crates-io-index";
+    };
   };
 
   outputs = {
@@ -55,9 +62,14 @@
         craneLib = (crane.mkLib pkgs).overrideToolchain toolchain;
         craneLibLLvmTools = (crane.mkLib pkgs).overrideToolchain toolchainWithLLvmTools;
 
+        crates = crates-nix.mkLib {inherit pkgs;};
+        lockedCrateVersion = crateName: lockFile: ((builtins.elemAt (builtins.filter (item: item.name == crateName) (builtins.fromTOML (builtins.readFile lockFile)).package)) 0).version;
+
         src = let
           filterBySuffix = path: exts: lib.any (ext: lib.hasSuffix ext path) exts;
-          sourceFilters = path: type: (craneLib.filterCargoSources path type) || filterBySuffix path [".c" ".h" ".hpp" ".cpp" ".cc"];
+          sourceFilters = path: type:
+            (craneLib.filterCargoSources path type)
+            || filterBySuffix path [".html"];
         in
           lib.cleanSourceWith {
             filter = sourceFilters;
@@ -87,8 +99,11 @@
               libiconv
               apple-sdk_26
             ]);
+          wasm-bindgen-cli = crates.buildCrate "wasm-bindgen-cli" {
+            version = lockedCrateVersion "wasm-bindgen" ./Cargo.lock;
+          };
         };
-        cargoArtifacts = craneLib.buildPackage commonArgs;
+        cargoArtifacts = craneLib.buildTrunkPackage commonArgs;
       in {
         checks =
           {
@@ -123,19 +138,10 @@
           };
 
         packages = let
-          pkg = craneLib.buildPackage (commonArgs
+          pkg = craneLib.buildTrunkPackage (
+            commonArgs
             // {inherit cargoArtifacts;}
-            // {
-              postInstall = ''
-                mkdir -p $out/bin
-                mkdir -p $out/share/bash-completions
-                mkdir -p $out/share/fish/vendor_completions.d
-                mkdir -p $out/share/zsh/site-functions
-                $out/bin/${name} completions bash > $out/share/bash-completions/${name}.bash
-                $out/bin/${name} completions fish > $out/share/fish/vendor_completions.d/${name}.fish
-                $out/bin/${name} completions zsh > $out/share/zsh/site-functions/_${name}
-              '';
-            });
+          );
         in {
           "${name}" = pkg;
           default = pkg;