diff --git a/.github/workflows/Install-dependencies/action.yml b/.github/workflows/Install-dependencies/action.yml
index 5822912..f57dda9 100644
--- a/.github/workflows/Install-dependencies/action.yml
+++ b/.github/workflows/Install-dependencies/action.yml
@@ -1,4 +1,10 @@
-name: Install Zig
+name: Install Dependencies
+
+inputs:
+    which-dependencies:
+        description: "Which dependencies to install"
+        required: true
+        default: "codespell"
 
 runs:
     using: "composite"
@@ -6,6 +12,10 @@ runs:
         - name: Checkout repository
           uses: actions/checkout@v4
 
-        - name: Install Zig
+        - uses: actions/checkout@v4
+        - uses: actions/setup-python@v5
+          if: ${{ inputs.which-dependencies == 'codespell'}}
+          with:
+              python-version: "3.9"
+        - run: pip install codespell
           shell: bash
-          run: sudo snap install --beta zig --classic
diff --git a/.github/workflows/test-spelling.yml b/.github/workflows/test-spelling.yml
index 36cd9bb..0af14b6 100644
--- a/.github/workflows/test-spelling.yml
+++ b/.github/workflows/test-spelling.yml
@@ -7,16 +7,18 @@ on:
 
 jobs:
     test:
-        runs-on: ubuntu-latest
+        strategy:
+            matrix:
+                os: [ubuntu-latest, windows-latest, macos-latest]
+        runs-on: ${{ matrix.os }}
         steps:
             - name: Checkout code
               uses: actions/checkout@v4
 
-            - name: install dependencies
-              run: |
-                  sudo apt-get update
-                  sudo apt-get install python3-pip
-                  pip3 install codespell
+            - name: Install Dependencies
+              uses: ./.github/workflows/Install-dependencies
+              with:
+                  which-dependencies: codespell
 
             - name: Run codespell
               working-directory: ./
diff --git a/.github/workflows/test-zig-files.yml b/.github/workflows/test-zig-files.yml
index df4edfe..b4e8dd2 100644
--- a/.github/workflows/test-zig-files.yml
+++ b/.github/workflows/test-zig-files.yml
@@ -10,28 +10,45 @@ on:
             - ".github/workflows/test-zig-files.yml"
 
 jobs:
-    test:
+    Simple-tests:
         runs-on: ubuntu-latest
         steps:
             - name: Checkout code
               uses: actions/checkout@v4
 
-            - name: Install Dependencies
-              uses: ./.github/workflows/Install-dependencies
-
-            - name: Run tests on ZIG file change
-              working-directory: ziging
-              shell: bash
-              run: |
+            - uses: actions/checkout@v2
+            - uses: goto-bus-stop/setup-zig@v2
+            - run: |
                   zig test beginner_basics.zig
                   zig test testing_stuff.zig
                   zig test intermediate_basics.zig
                   zig test advanced_basics.zig
                   echo 'Avi Fenesh' | zig test standard_library.zig
-
-            - name: Run tests on Project0
-              working-directory: Project0-word
+              working-directory: ziging
               shell: bash
-              run: |
+
+    HW-test:
+        strategy:
+            matrix:
+                os: [ubuntu-latest, windows-latest, macos-latest]
+        runs-on: ${{ matrix.os }}
+        steps:
+            - name: Checkout code
+              uses: actions/checkout@v4
+
+            - uses: actions/checkout@v2
+            - uses: goto-bus-stop/setup-zig@v2
+            - run: |
+                  echo 'testing P0-tests.zig'
                   zig test P0-tests.zig
+                  echo 'testing utils.zig'
                   zig test utils.zig
+              working-directory: Project0-word
+              shell: bash
+
+    lint:
+        runs-on: ubuntu-latest
+        steps:
+            - uses: actions/checkout@v2
+            - uses: goto-bus-stop/setup-zig@v2
+            - run: zig fmt --check .
diff --git a/Project0-word/main.zig b/Project0-word/main.zig
index 511b803..53202b6 100644
--- a/Project0-word/main.zig
+++ b/Project0-word/main.zig
@@ -19,7 +19,7 @@ pub fn main() !void {
             const exit_message = printErrMessageAndExit(err);
             std.process.exit(exit_message);
         };
-        count_words.countWords(path);
+        _ = count_words.countWords(path);
     } else {
         const stdin = std.io.getStdIn();
         defer stdin.close();
@@ -56,7 +56,7 @@ pub fn main() !void {
             const exit_message = printErrMessageAndExit(err);
             std.process.exit(exit_message);
         };
-        count_words.countWords(path);
+        _ = count_words.countWords(path);
     }
 }
 
diff --git a/Project0-word/utils.zig b/Project0-word/utils.zig
index cd1e85b..c3a5650 100644
--- a/Project0-word/utils.zig
+++ b/Project0-word/utils.zig
@@ -2,21 +2,23 @@ const std = @import("std");
 const Reader = std.fs.File.Reader;
 const print = std.debug.print;
 const os_tag = @import("builtin").os.tag;
-const eql = std.mem.eql;
 const File = std.fs.File;
 const CreateFlags = File.CreateFlags;
 const isAlphabetic = std.ascii.isAlphabetic;
 const isWhitespace = std.ascii.isWhitespace;
 const expect = @import("std").testing.expect;
 const test_allocator = std.testing.allocator;
+const unicode = std.unicode;
+const cwd = std.fs.cwd;
+const mem = std.mem;
+const eql = mem.eql;
+const GPA = std.heap.GeneralPurposeAllocator;
+const Allocator = std.mem.Allocator;
 
-pub fn nextLine(reader: Reader, buffer: []u8) !?[]const u8 {
-    const line = reader.readUntilDelimiterOrEof(buffer, '\n') catch |err| {
-        print("Err: {}\n", .{err});
-        return err;
-    };
+pub fn nextLine(reader: anytype, buffer: []u8) !?[]const u8 {
+    const line = (try reader.readUntilDelimiterOrEof(buffer, '\n')) orelse return null;
     if (os_tag == .windows) {
-        return std.mem.trimRight(u8, line, '\r');
+        return mem.trimRight(u8, line, "\r");
     } else {
         return line;
     }
@@ -29,114 +31,143 @@ pub fn parseArgs(args: [][]const u8) error{ InvalidCommand, ErrorWritingToStdout
         return args[1];
     } else if (eql(u8, args[0], "--help")) {
         stdout.writeAll("Optional args are:\nFor counting words in a file: -cw <file> \nFor help: --help \n") catch |err| {
-            std.debug.print("Error writing to stdout: {any}\n", .{err});
+            print("Error writing to stdout: {any}\n", .{err});
             return error.ErrorWritingToStdout;
         };
         return error.Retry;
     } else {
-        std.debug.print("Unknown command: {any}\n", .{args[0]});
+        print("Unknown command: {any}\n", .{args[0]});
         return error.InvalidCommand;
     }
 }
 
-// TODO: Add different path encoding for different OS
-// TODO: Break this function into smaller functions
 pub fn cleanFile(path: []u8, buffer: []u8) ![]u8 {
-    var general_purpose_allocator = std.heap.GeneralPurposeAllocator(.{}){};
+    var general_purpose_allocator = GPA(.{}){};
     const gpa = general_purpose_allocator.allocator();
-    var slices = [_][]const u8{ path, ".cleaned" };
-    var file_read: File = try std.fs.cwd().openFile(path, .{});
+    var encoded_path_buffer = gpa.alloc(u8, path.len) catch unreachable;
+    const encoded_file_sub_path = try encodePathForOs(path, encoded_path_buffer);
+    defer gpa.free(encoded_path_buffer);
+    var file_read: File = try cwd().openFile(encoded_file_sub_path, .{});
     defer file_read.close();
     const file_reader = file_read.reader();
-    const new_file_sub_path = std.mem.concat(gpa, u8, &slices) catch unreachable;
-    var new_file: File = try std.fs.cwd().createFile(new_file_sub_path, CreateFlags{ .truncate = true });
+
+    const new_file_sub_path = mem.concat(gpa, u8, &.{ path, ".cleaned" }) catch unreachable;
+    gpa.free(encoded_path_buffer);
+    encoded_path_buffer = gpa.alloc(u8, new_file_sub_path.len) catch unreachable;
+    const encoded_new_file_sub_path = try encodePathForOs(new_file_sub_path, encoded_path_buffer);
+    var new_file: File = try cwd().createFile(encoded_new_file_sub_path, CreateFlags{ .truncate = true });
     defer new_file.close();
     const writer = new_file.writer();
+
     while (try file_reader.readUntilDelimiterOrEof(buffer, '\n')) |line| {
-        if (line.len == 0) {
-            continue;
-        }
-        if (eql(u8, line, " ")) {
-            continue;
-        }
-        if (eql(u8, line, "\n")) {
+        if (continueToNextLine(line)) {
             continue;
         }
-        if (eql(u8, line, "\r")) {
-            continue;
-        }
-        if (eql(u8, line, "\t")) {
-            continue;
-        }
-        if (line[0] == '#') {
-            continue;
-        }
-        if (line.len > 0) {
-            var word: [1024]u8 = undefined;
-            var i: usize = 0;
-            var c: usize = 0;
-            while (i < line.len) {
-                const char = line[i];
-                if (isAlphabetic(char)) {
-                    word[c] = char;
-                    c += 1;
-                } else if (isWhitespace(char)) {
-                    if (c > 0) {
-                        const string = std.ascii.lowerString(word[0..c], word[0..c]);
-                        writer.writeAll(string) catch |err| {
-                            return err;
-                        };
-                        writer.writeAll("\n") catch |err| {
-                            return err;
-                        };
-                        c = 0;
-                    }
+        var word: [1024]u8 = undefined;
+        var i: usize = 0;
+        var c: usize = 0;
+        while (i < line.len) {
+            const char = line[i];
+            if (isAlphabetic(char)) {
+                word[c] = char;
+                c += 1;
+            } else if (isWhitespace(char)) {
+                if (c > 0) {
+                    const string = std.ascii.lowerString(word[0..c], word[0..c]);
+                    writer.writeAll(string) catch |err| {
+                        return err;
+                    };
+                    writer.writeAll("\n") catch |err| {
+                        return err;
+                    };
+                    c = 0;
                 }
-                i += 1;
             }
+            i += 1;
         }
     }
-
     return new_file_sub_path;
 }
 
+fn encodePathForOs(path: []u8, encoded_path_buffer: []u8) ![]u8 {
+    if (os_tag == .windows) {
+        var i: usize = 0;
+        var c: usize = 0;
+        while (i < path.len) : (i += 1) {
+            const codepoint = try unicode.utf8Decode(path[i]);
+            c += try unicode.wtf8Encode(codepoint, encoded_path_buffer[c..]);
+        }
+        return encoded_path_buffer;
+    } else {
+        return path;
+    }
+}
+
+fn continueToNextLine(line: []u8) bool {
+    if (line.len == 0) {
+        return true;
+    }
+    if (eql(u8, line, " ")) {
+        return true;
+    }
+    if (eql(u8, line, "\n")) {
+        return true;
+    }
+    if (eql(u8, line, "\r")) {
+        return true;
+    }
+    if (eql(u8, line, "\t")) {
+        return true;
+    }
+    if (line[0] == '#') {
+        return true;
+    }
+    if (line.len == 0) {
+        return true;
+    }
+    return false;
+}
+
 test "clean file" {
     var file_path = "test_file.txt".*;
     var file: File = try std.fs.cwd().createFile(&file_path, CreateFlags{ .truncate = true, .read = true });
     defer file.close();
     var writer = file.writer();
     writer.writeAll("Hello, this is a test file\n") catch |err| {
-        std.debug.print("Error writing to file: {any}\n", .{err});
+        print("Error writing to file: {any}\n", .{err});
         return err;
     };
     writer.writeAll("This is a test file\n") catch |err| {
-        std.debug.print("Error writing to file: {any}\n", .{err});
+        print("Error writing to file: {any}\n", .{err});
         return err;
     };
     writer.writeAll("This is a test file\n") catch |err| {
-        std.debug.print("Error writing to file: {any}\n", .{err});
+        print("Error writing to file: {any}\n", .{err});
         return err;
     };
     writer.writeAll("This is a test file\n") catch |err| {
-        std.debug.print("Error writing to file: {any}\n", .{err});
+        print("Error writing to file: {any}\n", .{err});
         return err;
     };
     var buffer: [1024]u8 = undefined;
-    const cleaned_file: []const u8 = try cleanFile(&file_path, &buffer);
-    const cleaned_file_read = try std.fs.cwd().openFile(cleaned_file, .{});
+    const cleaned_file: []const u8 = cleanFile(&file_path, &buffer) catch |err| {
+        print("Error cleaning file: {any}\n", .{err});
+        return err;
+    };
+    const cleaned_file_read = try cwd().openFile(cleaned_file, .{});
     defer cleaned_file_read.close();
     const cleaned_file_reader = cleaned_file_read.reader();
     var cleaned_buffer: [1024]u8 = undefined;
 
     const expected: [6][:0]u8 = .{ @constCast("hello"), @constCast("this"), @constCast("is"), @constCast("a"), @constCast("test"), @constCast("file") };
-    std.debug.print("expected: {s}\n", .{expected[0..expected.len]});
+    print("expected: {s}\n", .{expected[0..expected.len]});
     var foundExpected = false;
     while (try nextLine(cleaned_file_reader, &cleaned_buffer)) |line| {
-        std.debug.print("line: {s}\n", .{line});
+        print("line: {s}\n", .{line});
         inner: for (&expected) |expectedValue| {
-            std.debug.print("{s}\n", .{expectedValue});
+            print("{s}\n", .{expectedValue});
             if (eql(u8, line, expectedValue)) {
-                std.debug.print("found expected: {s}\n", .{expectedValue});
+                print("found expected: {s}\n", .{expectedValue});
                 foundExpected = true;
                 break :inner;
             }