diff --git a/src/openrct2-ui/input/ShortcutManager.cpp b/src/openrct2-ui/input/ShortcutManager.cpp
index 4522f336c3..cc12f9c222 100644
--- a/src/openrct2-ui/input/ShortcutManager.cpp
+++ b/src/openrct2-ui/input/ShortcutManager.cpp
@@ -12,10 +12,10 @@
 #include "ShortcutIds.h"
 
 #include <SDL.h>
-#include <fstream>
 #include <openrct2/Context.h>
 #include <openrct2/PlatformEnvironment.h>
 #include <openrct2/core/DataSerialiser.h>
+#include <openrct2/core/FileStream.h>
 #include <openrct2/core/FileSystem.hpp>
 #include <openrct2/core/Json.hpp>
 #include <openrct2/core/String.hpp>
@@ -246,34 +246,26 @@ std::optional<ShortcutInput> ShortcutManager::ConvertLegacyBinding(uint16_t bind
 void ShortcutManager::LoadLegacyBindings(const fs::path& path)
 {
     constexpr int32_t SUPPORTED_FILE_VERSION = 1;
+    constexpr int32_t MAX_LEGACY_SHORTCUTS = 85;
 
-    auto fs = std::ifstream(path);
-    if (fs)
+    auto fs = FileStream(path, FILE_MODE_OPEN);
+    auto version = fs.ReadValue<uint16_t>();
+    if (version == SUPPORTED_FILE_VERSION)
     {
-        auto br = BinaryReader(&fs);
-
-        uint16_t version{};
-        br << version;
-
-        if (version == SUPPORTED_FILE_VERSION)
+        for (size_t i = 0; i < MAX_LEGACY_SHORTCUTS; i++)
         {
-            for (size_t i = 0; i < 85; i++)
+            auto value = fs.ReadValue<uint16_t>();
+            auto shortcutId = GetLegacyShortcutId(i);
+            if (!shortcutId.empty())
             {
-                uint16_t value{};
-                br << value;
-
-                auto shortcutId = GetLegacyShortcutId(i);
-                if (!shortcutId.empty())
+                auto shortcut = GetShortcut(shortcutId);
+                if (shortcut != nullptr)
                 {
-                    auto shortcut = GetShortcut(shortcutId);
-                    if (shortcut != nullptr)
+                    shortcut->Current.clear();
+                    auto input = ConvertLegacyBinding(value);
+                    if (input)
                     {
-                        shortcut->Current.clear();
-                        auto input = ConvertLegacyBinding(value);
-                        if (input)
-                        {
-                            shortcut->Current.push_back(std::move(*input));
-                        }
+                        shortcut->Current.push_back(std::move(*input));
                     }
                 }
             }
diff --git a/src/openrct2/core/DataSerialiser.h b/src/openrct2/core/DataSerialiser.h
index 3a97c35bbd..95622961ae 100644
--- a/src/openrct2/core/DataSerialiser.h
+++ b/src/openrct2/core/DataSerialiser.h
@@ -12,67 +12,7 @@
 #include "DataSerialiserTraits.h"
 #include "MemoryStream.h"
 
-#include <iostream>
 #include <type_traits>
-#include <variant>
-
-class BinarySerialiser
-{
-private:
-    std::variant<std::istream*, std::ostream*> _stream{};
-
-public:
-    BinarySerialiser(std::istream* stream)
-        : _stream(stream)
-    {
-    }
-
-    BinarySerialiser(std::ostream* stream)
-        : _stream(stream)
-    {
-    }
-
-    bool IsReading() const
-    {
-        return std::holds_alternative<std::istream*>(_stream);
-    }
-
-    bool IsWriting() const
-    {
-        return std::holds_alternative<std::ostream*>(_stream);
-    }
-
-    template<typename T> BinarySerialiser& operator<<(const T& data)
-    {
-        if (auto istream = std::get_if<std::istream*>(&_stream))
-        {
-            DataSerializerTraits<T>::decode(**istream, const_cast<T&>(data));
-        }
-        else if (auto ostream = std::get_if<std::ostream*>(&_stream))
-        {
-            DataSerializerTraits<T>::encode(**ostream, data);
-        }
-        return *this;
-    }
-};
-
-class BinaryReader : public BinarySerialiser
-{
-public:
-    BinaryReader(std::istream* stream)
-        : BinarySerialiser(stream)
-    {
-    }
-};
-
-class BinaryWriter : public BinarySerialiser
-{
-public:
-    BinaryWriter(std::ostream* stream)
-        : BinarySerialiser(stream)
-    {
-    }
-};
 
 class DataSerialiser
 {
diff --git a/src/openrct2/core/DataSerialiserTraits.h b/src/openrct2/core/DataSerialiserTraits.h
index e8cb94beac..6128404106 100644
--- a/src/openrct2/core/DataSerialiserTraits.h
+++ b/src/openrct2/core/DataSerialiserTraits.h
@@ -73,14 +73,6 @@ template<typename T> struct DataSerializerTraitsIntegral
         stream->Read(&temp);
         val = ByteSwapBE(temp);
     }
-    static void encode(std::ostream& stream, const T& val)
-    {
-        stream.write(reinterpret_cast<const char*>(&val), sizeof(val));
-    }
-    static void decode(std::istream& stream, T& val)
-    {
-        stream.read(reinterpret_cast<char*>(&val), sizeof(val));
-    }
     static void log(OpenRCT2::IStream* stream, const T& val)
     {
         std::stringstream ss;
diff --git a/src/openrct2/core/FileStream.cpp b/src/openrct2/core/FileStream.cpp
index 3310c86e53..3a1ff1654b 100644
--- a/src/openrct2/core/FileStream.cpp
+++ b/src/openrct2/core/FileStream.cpp
@@ -30,6 +30,11 @@
 
 namespace OpenRCT2
 {
+    FileStream::FileStream(const fs::path& path, int32_t fileMode)
+        : FileStream(path.u8string(), fileMode)
+    {
+    }
+
     FileStream::FileStream(const std::string& path, int32_t fileMode)
         : FileStream(path.c_str(), fileMode)
     {
diff --git a/src/openrct2/core/FileStream.h b/src/openrct2/core/FileStream.h
index c002e5bef3..d9fdcffd3d 100644
--- a/src/openrct2/core/FileStream.h
+++ b/src/openrct2/core/FileStream.h
@@ -10,6 +10,7 @@
 #pragma once
 
 #include "../common.h"
+#include "FileSystem.hpp"
 #include "IStream.hpp"
 
 namespace OpenRCT2
@@ -35,6 +36,7 @@ namespace OpenRCT2
         uint64_t _fileSize = 0;
 
     public:
+        FileStream(const fs::path& path, int32_t fileMode);
         FileStream(const std::string& path, int32_t fileMode);
         FileStream(const utf8* path, int32_t fileMode);
         ~FileStream() override;