Fix crash on Windows

src/setup.zig

@@ -72,7 +72,14 @@ pub fn wizard(allocator: *std.mem.Allocator) !void {
         print("Found zig executable '{s}' in PATH.\n", .{path});
     } else {
         write("Could not find 'zig' in PATH\n");
-        zig_exe_path = try zinput.askString(allocator, "What is the path to the 'zig' executable you would like to use?", std.fs.MAX_PATH_BYTES);
+        zig_exe_path = try zinput.askString(allocator, 
+            if (std.builtin.os.tag == .windows) 
+                \\What is the path to the 'zig' executable you would like to use?
+                \\Note that due to a bug in zig (https://github.com/ziglang/zig/issues/6044),
+                \\your zig directory cannot contain the '/' character.
+            else
+                "What is the path to the 'zig' executable you would like to use?",
+            std.fs.MAX_PATH_BYTES);
     }
 
     const editor = try zinput.askSelectOne("Which code editor do you use?", enum { VSCode, Sublime, Kate, Neovim, Vim8, Emacs, Doom, Other });
@@ -223,15 +230,17 @@ pub fn findZig(allocator: *std.mem.Allocator) !?[]const u8 {
 
     var it = std.mem.tokenize(env_path, &[_]u8{std.fs.path.delimiter});
     while (it.next()) |path| {
+        if (std.builtin.os.tag == .windows) {
+            if (std.mem.indexOfScalar(u8, path, '/')) |s| continue;
+        }
         const full_path = try std.fs.path.join(allocator, &[_][]const u8{
             path,
             zig_exe,
         });
         defer allocator.free(full_path);
 
         if (!std.fs.path.isAbsolute(full_path)) continue;
-
-        // Skip folders named zig
+
         const file = std.fs.openFileAbsolute(full_path, .{}) catch continue;
         defer file.close();
         const stat = file.stat() catch continue;