diff --git a/src/packages/config/IZ_config_guid.h b/src/packages/config/IZ_config_guid.h
index d451d45..4603a0e 100644
--- a/src/packages/config/IZ_config_guid.h
+++ b/src/packages/config/IZ_config_guid.h
@@ -8,7 +8,7 @@ void INI_ConfigLoadGuid(INI_ConfigItem*, const char*);
 INI_ConfigSaveItemResult INI_ConfigSaveGuid(INI_ConfigItem*, const char*);
 void INI_ConfigOverrideGuid(INI_ConfigItem*, uint8_t, const char*[]);
 
-#define INI_CONFIG_TYPE_FNS_GUID (INI_ConfigTypeFns) { \
+#define INI_CONFIG_TYPE_GUID (INI_ConfigType) { \
 	.size = sizeof(SDL_GUID), \
 	.load = INI_ConfigLoadGuid, \
 	.save = INI_ConfigSaveGuid, \
diff --git a/src/packages/game/input/IZ_joystick.c b/src/packages/game/input/IZ_joystick.c
index 93c4f04..28d2626 100644
--- a/src/packages/game/input/IZ_joystick.c
+++ b/src/packages/game/input/IZ_joystick.c
@@ -204,32 +204,35 @@ void IZ_JoystickInitializeConfigItems(INI_ConfigItem config_items[]) {
 		sprintf(main_section_name, "Joystick.%d", player_index);
 		u8 base_index = (player_index * (IZ_CONTROLS - 4 + 2));
 		config_items[base_index] = (INI_ConfigItem) {
-			INI_CONFIG_TYPE_FNS_I32,
+			INI_CONFIG_TYPE_I32,
 			main_section_name,
 			"DeviceID",
 			NULL,
 			&IZ_JOYSTICK_DEFAULT_STATE[player_index].config.device_id,
 			NULL,
+			INI_CONFIG_TRANSFORMER_NONE,
 			NULL,
 		};
 
 		config_items[base_index + 1] = (INI_ConfigItem) {
-			INI_CONFIG_TYPE_FNS_U16,
+			INI_CONFIG_TYPE_U16,
 			main_section_name,
 			"AxisThreshold",
 			NULL,
 			&IZ_JOYSTICK_DEFAULT_STATE[player_index].config.axis_threshold,
 			IZ_JoystickIsValidAxisThreshold,
+			INI_CONFIG_TRANSFORMER_NONE,
 			NULL,
 		};
 
 		config_items[base_index + 2] = (INI_ConfigItem) {
-			INI_CONFIG_TYPE_FNS_GUID,
+			INI_CONFIG_TYPE_GUID,
 			main_section_name,
 			"GUID",
 			NULL,
 			&IZ_JOYSTICK_DEFAULT_STATE[player_index].config.guid,
 			NULL,
+			INI_CONFIG_TRANSFORMER_NONE,
 			NULL,
 		};
 
@@ -239,12 +242,13 @@ void IZ_JoystickInitializeConfigItems(INI_ConfigItem config_items[]) {
 		sprintf(control_mapping_section_name, "Joystick.%d.ControlMapping", player_index);
 		for (control_index = 4; control_index < IZ_CONTROLS; control_index += 1) {
 			config_items[base_index + 3 + (control_index - 4)] = (INI_ConfigItem) {
-				INI_CONFIG_TYPE_FNS_U8,
+				INI_CONFIG_TYPE_U8,
 				control_mapping_section_name,
 				IZ_ACTION_NAMES[control_index],
 				NULL,
 				&IZ_JOYSTICK_DEFAULT_STATE[player_index].config.control_mapping[control_index],
 				NULL,
+				INI_CONFIG_TRANSFORMER_NONE,
 				NULL,
 			};
 		}
diff --git a/src/packages/game/input/IZ_keyboard.c b/src/packages/game/input/IZ_keyboard.c
index 22b78bc..e364706 100644
--- a/src/packages/game/input/IZ_keyboard.c
+++ b/src/packages/game/input/IZ_keyboard.c
@@ -58,7 +58,7 @@ void IZ_KeyboardInitializeConfigItems(INI_ConfigItem config_items[]) {
 		sprintf(control_mapping_section_name, "Keyboard.%d.ControlMapping", player_index);
 		for (control_index = 0; control_index < IZ_CONTROLS; control_index += 1) {
 			config_items[player_index * IZ_CONTROLS + control_index] = (INI_ConfigItem) {
-				INI_CONFIG_TYPE_FNS_I32,
+				INI_CONFIG_TYPE_I32,
 				control_mapping_section_name,
 				IZ_ACTION_NAMES[control_index],
 				NULL,
diff --git a/src/packages/game/input/IZ_midi.c b/src/packages/game/input/IZ_midi.c
index b568db3..03cfd00 100644
--- a/src/packages/game/input/IZ_midi.c
+++ b/src/packages/game/input/IZ_midi.c
@@ -81,30 +81,24 @@ void IZ_MIDIInputInitializeConfigItems(INI_ConfigItem config_items[]) {
 
 		u16 base_index = (player_index * (IZ_CONTROLS + 2));
 		config_items[base_index] = (INI_ConfigItem) {
-			INI_CONFIG_TYPE_FNS_I32,
+			INI_CONFIG_TYPE_I32,
 			main_section_name,
 			"DeviceID",
 			NULL,
 			&IZ_MIDI_INPUT_DEFAULT_STATE[player_index].config.device_id,
 			NULL,
-			{
-				.serialize = NULL,
-				.deserialize = NULL,
-			},
+			INI_CONFIG_TRANSFORMER_NONE,
 			NULL,
 		};
 
 		config_items[base_index + 1] = (INI_ConfigItem) {
-			INI_CONFIG_TYPE_FNS_U8,
+			INI_CONFIG_TYPE_U8,
 			main_section_name,
 			"Channel",
 			NULL,
 			&IZ_MIDI_INPUT_DEFAULT_STATE[player_index].config.channel,
 			IZ_MIDIInputIsValidChannel,
-			{
-				.serialize = NULL,
-				.deserialize = NULL,
-			},
+			INI_CONFIG_TRANSFORMER_NONE,
 			NULL,
 		};
 
@@ -112,7 +106,7 @@ void IZ_MIDIInputInitializeConfigItems(INI_ConfigItem config_items[]) {
 		sprintf(control_mapping_section_name, "MIDIInput.%d.ControlMapping", player_index);
 		for (control_index = 0; control_index < IZ_CONTROLS; control_index += 1) {
 			config_items[base_index + 2 + control_index] = (INI_ConfigItem) {
-				INI_CONFIG_TYPE_FNS_U8,
+				INI_CONFIG_TYPE_U8,
 				control_mapping_section_name,
 				IZ_ACTION_NAMES[control_index],
 				NULL,
diff --git a/src/packages/game/output/video/IZ_video.c b/src/packages/game/output/video/IZ_video.c
index 835ec7b..6785d42 100644
--- a/src/packages/game/output/video/IZ_video.c
+++ b/src/packages/game/output/video/IZ_video.c
@@ -16,28 +16,34 @@ bool IZ_VideoIsValidMaxFPS(u8 max_fps) {
 
 static INI_ConfigItem video_config_items[] = {
 	{
-		INI_CONFIG_TYPE_FNS_U16,
+		INI_CONFIG_TYPE_U16,
 		"Video",
 		"Width",
 		NULL,
 		&IZ_VIDEO_DEFAULT_STATE.config.width,
 		IZ_VideoIsValidWidth,
+		INI_CONFIG_TRANSFORMER_NONE,
+		NULL,
 	},
 	{
-		INI_CONFIG_TYPE_FNS_U16,
+		INI_CONFIG_TYPE_U16,
 		"Video",
 		"Height",
 		NULL,
 		&IZ_VIDEO_DEFAULT_STATE.config.height,
 		IZ_VideoIsValidHeight,
+		INI_CONFIG_TRANSFORMER_NONE,
+		NULL,
 	},
 	{
-		INI_CONFIG_TYPE_FNS_U8,
+		INI_CONFIG_TYPE_U8,
 		"Video",
 		"MaxFps",
 		"-f",
 		&IZ_VIDEO_DEFAULT_STATE.config.max_fps,
 		IZ_VideoIsValidMaxFPS,
+		INI_CONFIG_TRANSFORMER_NONE,
+		NULL,
 	},
 	INI_CONFIG_ITEM_NULL,
 };
diff --git a/src/packages/net/IZ_net_client.c b/src/packages/net/IZ_net_client.c
index 060f18c..e7d44a8 100644
--- a/src/packages/net/IZ_net_client.c
+++ b/src/packages/net/IZ_net_client.c
@@ -16,31 +16,34 @@ static INI_ConfigItem net_client_config_items[IZ_PLAYERS + 3 + 1];
 
 void IZ_NetClientInitializeConfigItems(INI_ConfigItem config_items[]) {
 	config_items[0] = (INI_ConfigItem) {
-		INI_CONFIG_TYPE_FNS_U16,
-			"Network",
-			"PacketIntervalMs",
-			"-i",
-			&IZ_NET_CLIENT_DEFAULT_STATE.config.packet_interval_ms,
-			IZ_NetClientIsValidPacketIntervalMs,
-			NULL,
+		INI_CONFIG_TYPE_U16,
+		"Network",
+		"PacketIntervalMs",
+		"-i",
+		&IZ_NET_CLIENT_DEFAULT_STATE.config.packet_interval_ms,
+		IZ_NetClientIsValidPacketIntervalMs,
+		INI_CONFIG_TRANSFORMER_NONE,
+		NULL,
 	};
 	config_items[1] = (INI_ConfigItem) {
-		INI_CONFIG_TYPE_FNS_U8,
-			"Network",
-			"MaxReconnectRetries",
-			NULL,
-			&IZ_NET_CLIENT_DEFAULT_STATE.config.max_reconnect_retries,
-			IZ_NetClientIsValidMaxReconnectRetries,
-			NULL,
+		INI_CONFIG_TYPE_U8,
+		"Network",
+		"MaxReconnectRetries",
+		NULL,
+		&IZ_NET_CLIENT_DEFAULT_STATE.config.max_reconnect_retries,
+		IZ_NetClientIsValidMaxReconnectRetries,
+		INI_CONFIG_TRANSFORMER_NONE,
+		NULL,
 	};
 	config_items[2] = (INI_ConfigItem) {
-		INI_CONFIG_TYPE_FNS_U8,
-			"Network",
-			"ReconnectIntervalSeconds",
-			NULL,
-			&IZ_NET_CLIENT_DEFAULT_STATE.config.reconnect_interval_secs,
-			IZ_NetClientIsValidReconnectIntervalSeconds,
-			NULL,
+		INI_CONFIG_TYPE_U8,
+		"Network",
+		"ReconnectIntervalSeconds",
+		NULL,
+		&IZ_NET_CLIENT_DEFAULT_STATE.config.reconnect_interval_secs,
+		IZ_NetClientIsValidReconnectIntervalSeconds,
+		INI_CONFIG_TRANSFORMER_NONE,
+		NULL,
 	};
 
 	u8 player_index;
@@ -55,6 +58,7 @@ void IZ_NetClientInitializeConfigItems(INI_ConfigItem config_items[]) {
 			NULL,
 			&IZ_NET_CLIENT_DEFAULT_STATE.config.usernames[player_index],
 			NULL,
+			INI_CONFIG_TRANSFORMER_NONE,
 			NULL,
 		};
 	}
diff --git a/src/packages/net/IZ_net_server.c b/src/packages/net/IZ_net_server.c
index 869f14c..0a91c71 100644
--- a/src/packages/net/IZ_net_server.c
+++ b/src/packages/net/IZ_net_server.c
@@ -12,10 +12,7 @@ static INI_ConfigItem net_server_config_items[] = {
 		"-n",
 		&IZ_NET_SERVER_DEFAULT_STATE.config.name,
 		NULL,
-		{
-			.serialize = NULL,
-			.deserialize = NULL,
-		},
+		INI_CONFIG_TRANSFORMER_NONE,
 		NULL,
 	},
 	{
@@ -25,23 +22,17 @@ static INI_ConfigItem net_server_config_items[] = {
 		"-m",
 		&IZ_NET_SERVER_DEFAULT_STATE.config.motd,
 		NULL,
-		{
-			.serialize = NULL,
-			.deserialize = NULL,
-		},
+		INI_CONFIG_TRANSFORMER_NONE,
 		NULL,
 	},
 	{
-		INI_CONFIG_TYPE_FNS_U16,
+		INI_CONFIG_TYPE_U16,
 		"Network",
 		"Port",
 		"-p",
 		&IZ_NET_SERVER_DEFAULT_STATE.config.port,
 		IZ_NetServerIsValidPort,
-		{
-			.serialize = NULL,
-			.deserialize = NULL,
-		},
+		INI_CONFIG_TRANSFORMER_NONE,
 		NULL,
 	},
 	INI_CONFIG_ITEM_NULL,
diff --git a/src/packages/server/db/IZ_repo.c b/src/packages/server/db/IZ_repo.c
index 4c86e3b..2d656fb 100644
--- a/src/packages/server/db/IZ_repo.c
+++ b/src/packages/server/db/IZ_repo.c
@@ -8,10 +8,7 @@ static INI_ConfigItem repo_config_items[] = {
 		"-d",
 		&IZ_REPO_DEFAULT_STATE.config.path,
 		NULL,
-		{
-			.serialize = NULL,
-			.deserialize = NULL,
-		},
+		INI_CONFIG_TRANSFORMER_NONE,
 		NULL,
 	},
 	INI_CONFIG_ITEM_NULL,
diff --git a/subprojects/ini-config b/subprojects/ini-config
index 6dbbef4..482c2fa 160000
--- a/subprojects/ini-config
+++ b/subprojects/ini-config
@@ -1 +1 @@
-Subproject commit 6dbbef47a430649aec60a327512379b8dc0719a3
+Subproject commit 482c2faf41a8dd2c2a65acf0c41649d310dba3c8