diff --git a/src/keel/assetmanager.hpp b/src/keel/assetmanager.hpp
index 9683861c..d2088bc2 100644
--- a/src/keel/assetmanager.hpp
+++ b/src/keel/assetmanager.hpp
@@ -194,13 +194,13 @@ class AssetManager {
 				ox::HashMap<ox::String, ox::UniquePtr<AssetContainer<T>>> m_cache;
 
 			public:
-				ox::Result<AssetRef<T>> getAsset(const ox::String &assetId) const noexcept {
+				ox::Result<AssetRef<T>> getAsset(const ox::StringView &assetId) const noexcept {
 					auto out = m_cache.at(assetId);
 					oxReturnError(out);
 					return AssetRef<T>(out.value->get());
 				}
 
-				ox::Result<AssetRef<T>> setAsset(const ox::String &assetId, const T &obj) noexcept {
+				ox::Result<AssetRef<T>> setAsset(const ox::StringView &assetId, const T &obj) noexcept {
 					auto &p = m_cache[assetId];
 					if (!p) {
 						p = ox::make_unique<AssetContainer<T>>(obj);
@@ -211,7 +211,7 @@ class AssetManager {
 					return AssetRef<T>(p.get());
 				}
 
-				ox::Result<AssetRef<T>> setAsset(const ox::String &assetId, T &&obj) noexcept {
+				ox::Result<AssetRef<T>> setAsset(const ox::StringView &assetId, T &&obj) noexcept {
 					auto &p = m_cache[assetId];
 					if (!p) {
 						p = ox::make_unique<AssetContainer<T>>(obj);
@@ -247,13 +247,13 @@ class AssetManager {
 
 	public:
 		template<typename T>
-		ox::Result<AssetRef<T>> getAsset(const ox::String &assetId) noexcept {
+		ox::Result<AssetRef<T>> getAsset(ox::CRStringView assetId) noexcept {
 			auto m = getTypeManager<T>();
 			return m->getAsset(assetId);
 		}
 
 		template<typename T>
-		ox::Result<AssetRef<T>> setAsset(const ox::String &assetId, const T &obj) noexcept {
+		ox::Result<AssetRef<T>> setAsset(ox::CRStringView assetId, const T &obj) noexcept {
 			auto m = getTypeManager<T>();
 			return m->setAsset(assetId, obj);
 		}
diff --git a/src/keel/media.cpp b/src/keel/media.cpp
index e5671bb7..def57fb6 100644
--- a/src/keel/media.cpp
+++ b/src/keel/media.cpp
@@ -25,8 +25,11 @@ ox::Result<char*> loadRom(ox::CRStringView path) noexcept {
 		file.read(buff, size);
 		return buff;
 	} catch (const std::ios_base::failure &e) {
-		oxErrorf("Could not read ROM file: {}", e.what());
+		oxErrorf("Could not read ROM file due to file IO failure: {}", e.what());
 		return OxError(2, "Could not read ROM file");
+	} catch (const std::bad_alloc &e) {
+		oxErrorf("Could not read ROM file due to new failure: {}", e.what());
+		return OxError(2, "Could not allocate memory for ROM file");
 	}
 }
 
@@ -142,7 +145,7 @@ ox::Error setRomFs(Context *ctx, ox::UPtr<ox::FileSystem> fs) noexcept {
 
 ox::Result<ox::UniquePtr<ox::FileSystem>> loadRomFs(ox::CRStringView path) noexcept {
 	const auto lastDot = ox_lastIndexOf(path, '.');
-	const auto fsExt = lastDot != -1 ? path.substr(static_cast<std::size_t>(lastDot)) : "";
+	const auto fsExt = lastDot != -1 ? substr(path, static_cast<std::size_t>(lastDot)) : "";
 	if (ox_strcmp(fsExt, ".oxfs") == 0) {
 		oxRequire(rom, loadRom(path));
 		return {ox::make_unique<ox::FileSystem32>(rom, 32 * ox::units::MB, unloadRom)};
diff --git a/src/keel/media.hpp b/src/keel/media.hpp
index 9ca3afec..8d5ef1dd 100644
--- a/src/keel/media.hpp
+++ b/src/keel/media.hpp
@@ -52,28 +52,24 @@ ox::Result<keel::AssetRef<T>> readObjFile(
 	ox::StringView path;
 	ox::UUIDStr uuidStr;
 	if (beginsWith(assetId, "uuid://")) {
-		assetId = assetId.substr(7);
+		assetId = substr(assetId, 7);
 		path = ctx->uuidToPath[assetId];
 	} else {
 		path = assetId;
-		// Warning: StringView to String
-		uuidStr = ctx->pathToUuid[ox::String(path)].toString();
+		uuidStr = ctx->pathToUuid[path].toString();
 		assetId = uuidStr;
 	}
 	if (forceLoad) {
 		oxRequire(buff, ctx->rom->read(path));
 		oxRequire(obj, readConvert(ctx, buff));
-		// Warning: StringView to String
-		oxRequire(cached, ctx->assetManager.setAsset(ox::String(assetId), obj));
+		oxRequire(cached, ctx->assetManager.setAsset(assetId, obj));
 		return cached;
 	} else {
-		// Warning: StringView to String
-		auto [cached, err] = ctx->assetManager.getAsset<T>(ox::String(assetId));
+		auto [cached, err] = ctx->assetManager.getAsset<T>(assetId);
 		if (err) {
 			oxRequire(buff, ctx->rom->read(path));
 			oxRequire(obj, readConvert(ctx, buff));
-			// Warning: StringView to String
-			oxReturnError(ctx->assetManager.setAsset(ox::String(assetId), obj).moveTo(&cached));
+			oxReturnError(ctx->assetManager.setAsset(assetId, obj).moveTo(&cached));
 		}
 		return cached;
 	}
@@ -107,14 +103,12 @@ ox::Result<AssetRef<T>> setAsset(keel::Context *ctx, ox::StringView assetId, T c
 	}
 	ox::UUIDStr idStr;
 	if (assetId[0] == '/') {
-		// Warning: StringView to String
-		const auto [id, err] = ctx->pathToUuid.at(ox::String(assetId));
+		const auto [id, err] = ctx->pathToUuid.at(assetId);
 		oxReturnError(err);
 		idStr = id->toString();
 		assetId = idStr;
 	}
-	// Warning: StringView to String
-	return ctx->assetManager.setAsset(ox::String(assetId), asset);
+	return ctx->assetManager.setAsset(assetId, asset);
 #else
 	return OxError(1, "Not supported on this platform");
 #endif
diff --git a/src/keel/pack.cpp b/src/keel/pack.cpp
index 22e3a206..402f1916 100644
--- a/src/keel/pack.cpp
+++ b/src/keel/pack.cpp
@@ -31,7 +31,7 @@ static ox::Error pathToInode(
 	}
 	if (beginsWith(path, "uuid://")) {
 #ifndef OX_BARE_METAL
-		const auto uuid = ox::StringView(path).substr(7);
+		const auto uuid = substr(ox::StringView(path), 7);
 		path = ctx->uuidToPath[uuid];
 #else
 		return OxError(1, "UUID to path conversion not supported on this platform");
diff --git a/src/nostalgia/modules/core/src/studio/studiomodule.cpp b/src/nostalgia/modules/core/src/studio/studiomodule.cpp
index 7659db75..d4fd7e91 100644
--- a/src/nostalgia/modules/core/src/studio/studiomodule.cpp
+++ b/src/nostalgia/modules/core/src/studio/studiomodule.cpp
@@ -29,10 +29,10 @@ class StudioModule: public studio::Module {
 		};
 	}
 
-	ox::Vector<ox::UniquePtr<studio::ItemMaker>> itemMakers(turbine::Context*) const noexcept final {
+	ox::Vector<ox::UPtr<studio::ItemMaker>> itemMakers(turbine::Context*) const noexcept final {
 		ox::Vector<ox::UniquePtr<studio::ItemMaker>> out;
-		out.emplace_back(ox::make<studio::ItemMakerT<core::TileSheet>>("Tile Sheet", "TileSheets", "ng"));
-		out.emplace_back(ox::make<studio::ItemMakerT<core::Palette>>("Palette", "Palettes", "npal"));
+		out.emplace_back(ox::make<studio::ItemMakerT<core::TileSheet>>("Tile Sheet", "TileSheets", FileExt_ng));
+		out.emplace_back(ox::make<studio::ItemMakerT<core::Palette>>("Palette", "Palettes", FileExt_npal));
 		return out;
 	}
 };
diff --git a/src/nostalgia/modules/core/src/studio/tilesheeteditormodel.cpp b/src/nostalgia/modules/core/src/studio/tilesheeteditormodel.cpp
index 45c41d8c..51ebf04d 100644
--- a/src/nostalgia/modules/core/src/studio/tilesheeteditormodel.cpp
+++ b/src/nostalgia/modules/core/src/studio/tilesheeteditormodel.cpp
@@ -632,7 +632,7 @@ ox::StringView TileSheetEditorModel::palPath() const noexcept {
 	}
 	constexpr ox::StringView uuidPrefix = "uuid://";
 	if (ox::beginsWith(path, uuidPrefix)) {
-		auto uuid = ox::StringView(path + uuidPrefix.bytes(), ox_strlen(path) - uuidPrefix.bytes());
+		auto uuid = ox::StringView(path.data() + uuidPrefix.bytes(), path.bytes() - uuidPrefix.bytes());
 		auto out = m_ctx->keelCtx.uuidToPath.at(uuid);
 		if (out.error) {
 			return {};
diff --git a/src/nostalgia/player/main.cpp b/src/nostalgia/player/main.cpp
index 4e34b03b..985f1341 100644
--- a/src/nostalgia/player/main.cpp
+++ b/src/nostalgia/player/main.cpp
@@ -35,17 +35,7 @@ int main(int argc, const char **argv) {
 #endif
 	OX_INIT_DEBUG_LOGGER(loggerConn, "Nostalgia Player")
 	ox::Error err;
-#ifdef __cpp_exceptions
-	try {
-		err = run(argc, argv);
-	} catch (ox::Exception const&ex) {
-		err = ex.toError();
-	} catch (...) {
-		err = OxError(1, "Non-Ox exception");
-	}
-#else
 	err = run(argc, argv);
-#endif
 	oxAssert(err, "Something went wrong...");
 	return static_cast<int>(err);
 }
diff --git a/src/studio/modlib/include/studio/project.hpp b/src/studio/modlib/include/studio/project.hpp
index 554e1d2b..397478a7 100644
--- a/src/studio/modlib/include/studio/project.hpp
+++ b/src/studio/modlib/include/studio/project.hpp
@@ -33,7 +33,7 @@ constexpr ox::Result<ox::StringView> fileExt(ox::CRStringView path) noexcept {
 	if (!extStart) {
 		return OxError(1, "Cannot open a file without valid extension.");
 	}
-	return path.substr(extStart + 1);
+	return substr(path, extStart + 1);
 }
 
 class Project {
diff --git a/src/studio/modlib/src/editor.cpp b/src/studio/modlib/src/editor.cpp
index 8fadb13b..dd3d0375 100644
--- a/src/studio/modlib/src/editor.cpp
+++ b/src/studio/modlib/src/editor.cpp
@@ -104,7 +104,7 @@ ox::Error BaseEditor::saveItem() noexcept {
 
 ox::StringView BaseEditor::pathToItemName(ox::CRStringView path) noexcept {
 	const auto lastSlash = std::find(path.rbegin(), path.rend(), '/').offset();
-	return path.substr(lastSlash + 1);
+	return substr(path, lastSlash + 1);
 }
 
 void BaseEditor::setRequiresConstantRefresh(bool value) noexcept {
diff --git a/src/studio/modlib/src/project.cpp b/src/studio/modlib/src/project.cpp
index 3197b425..d9230b60 100644
--- a/src/studio/modlib/src/project.cpp
+++ b/src/studio/modlib/src/project.cpp
@@ -23,7 +23,7 @@ static void generateTypes(ox::TypeStore *ts) noexcept {
 
 Project::Project(keel::Context *ctx, ox::String path, ox::CRStringView projectDataDir) noexcept:
 	m_ctx(ctx),
-	m_path(path),
+	m_path(std::move(path)),
 	m_projectDataDir(projectDataDir),
 	m_typeStore(ctx->rom.get(), ox::sfmt("/.{}/type_descriptors", projectDataDir)),
 	m_fs(ctx->rom.get()) {
@@ -57,8 +57,7 @@ bool Project::exists(ox::CRStringView path) const noexcept {
 }
 
 const ox::Vector<ox::String> &Project::fileList(ox::CRStringView ext) noexcept {
-	// Warning: StringView to String
-	return m_fileExtFileMap[ox::String(ext)];
+	return m_fileExtFileMap[ext];
 }
 
 void Project::buildFileIndex() noexcept {
@@ -81,8 +80,7 @@ void Project::indexFile(ox::CRStringView path) noexcept {
 	if (err) {
 		return;
 	}
-	// Warning: StringView to String
-	m_fileExtFileMap[ox::String(ext)].emplace_back(path);
+	m_fileExtFileMap[ext].emplace_back(path);
 }
 
 ox::Error Project::writeBuff(const ox::StringView &path, const ox::Buffer &buff) noexcept {
@@ -90,8 +88,7 @@ ox::Error Project::writeBuff(const ox::StringView &path, const ox::Buffer &buff)
 	ox::Buffer outBuff;
 	outBuff.reserve(buff.size() + HdrSz);
 	ox::BufferWriter writer(&outBuff);
-	// Warning: StringView to String
-	const auto [uuid, err] =  m_ctx->pathToUuid.at(ox::String(path));
+	const auto [uuid, err] =  m_ctx->pathToUuid.at(path);
 	if (!err) {
 		oxReturnError(keel::writeUuidHeader(writer, *uuid));
 	}