diff --git a/sysdata/programs/filesystem_fat32/src/bios_parameter_block.hb b/sysdata/programs/filesystem_fat32/src/bios_parameter_block.hb
index d6774c1..bc688da 100644
--- a/sysdata/programs/filesystem_fat32/src/bios_parameter_block.hb
+++ b/sysdata/programs/filesystem_fat32/src/bios_parameter_block.hb
@@ -6,10 +6,10 @@ VALID_JUMP_BYTES := [u8].(0xEB, 0x3C, 0x90)
 OemIdent := struct {
 	dos_version: [u8; 8],
 	dos_version_name: [u8; 8],
-}
 
-new_oem_ident := fn(major: int, minor: int): OemIdent {
-	return .(.(0, 0, 0, 0, 0, 0, 0, 0), .(0, 0, 0, 0, 0, 0, 0, 0))
+	new := fn(major: int, minor: int): OemIdent {
+		return .(.(0, 0, 0, 0, 0, 0, 0, 0), .(0, 0, 0, 0, 0, 0, 0, 0))
+	}
 }
 
 BiosParameterBlock := struct {
@@ -30,21 +30,21 @@ BiosParameterBlock := struct {
 	head_count: u16,
 	hidden_sectors: u32,
 	large_sector_count: u32,
-}
 
-bpb_sanity_check := fn(bpb: BiosParameterBlock): int {
-	return 0
-}
+	sanity_check := fn(bpb: BiosParameterBlock): int {
+		return 0
+	}
 
-new_bpb := fn(): BiosParameterBlock {
-	return .(VALID_JUMP_BYTES, new_oem_ident(0, 0), 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)
-}
+	new := fn(): BiosParameterBlock {
+		return .(VALID_JUMP_BYTES, OemIdent.new(0, 0), 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)
+	}
 
-sector_count := fn(bpb: BiosParameterBlock): u32 {
-	if bpb.total_sectors == 0 {
-		return bpb.large_sector_count
-	} else {
-		return bpb.total_sectors
+	sector_count := fn(bpb: BiosParameterBlock): u32 {
+		if bpb.total_sectors == 0 {
+			return bpb.large_sector_count
+		} else {
+			return bpb.total_sectors
+		}
 	}
 }
 
@@ -85,48 +85,48 @@ ExtendedBootRecord := struct {
 	system_identifier_string: SystemIdentifierString,
 	boot_code: BootCode,
 	partition_signature: u16,
-}
 
-ebr_sanity_check := fn(ebr: ExtendedBootRecord): int {
-	ret := 0
-	if ebr.drive_number != 0x0 | ebr.drive_number != 0x80 {
-		log.warn("EBR-Drive-Number sanity check failed\0")
+	sanity_check := fn(ebr: ExtendedBootRecord): int {
+		ret := 0
+		if ebr.drive_number != 0x0 | ebr.drive_number != 0x80 {
+			log.warn("EBR-Drive-Number sanity check failed\0")
+		}
+
+		if ebr.signature != 0x28 | ebr.signature != 0x29 {
+			log.warn("EBR-Signature sanity check failed\0")
+		}
+
+		// ! comparison between [u8] is not supported in hblang
+		// if ebr.system_identifier_string != VALID_SYSTEM_IDENTIFIER_STRING {
+		// log.warn("EBR-Signature-Identifier-String sanity check failed\0")
+		// }
+		return 0
 	}
 
-	if ebr.signature != 0x28 | ebr.signature != 0x29 {
-		log.warn("EBR-Signature sanity check failed\0")
+	new := fn(): ExtendedBootRecord {
+		version := FatVersionNumber.(0, 0)
+		fmt_res := FormatReservation.(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)
+		vol_name := @as([u8; 11], idk)
+		boot_code := @as([u8; 420], idk)
+
+		return ExtendedBootRecord.(
+			0,
+			0,
+			version,
+			0,
+			0,
+			0,
+			fmt_res,
+			0,
+			0,
+			0,
+			0,
+			vol_name,
+			VALID_SYSTEM_IDENTIFIER_STRING,
+			boot_code,
+			0,
+		)
 	}
-
-	// ! comparison between [u8] is not supported in hblang
-	// if ebr.system_identifier_string != VALID_SYSTEM_IDENTIFIER_STRING {
-	// log.warn("EBR-Signature-Identifier-String sanity check failed\0")
-	// }
-	return 0
-}
-
-new_ebr := fn(): ExtendedBootRecord {
-	version := FatVersionNumber.(0, 0)
-	fmt_res := FormatReservation.(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)
-	vol_name := @as([u8; 11], idk)
-	boot_code := @as([u8; 420], idk)
-
-	return ExtendedBootRecord.(
-		0,
-		0,
-		version,
-		0,
-		0,
-		0,
-		fmt_res,
-		0,
-		0,
-		0,
-		0,
-		vol_name,
-		VALID_SYSTEM_IDENTIFIER_STRING,
-		boot_code,
-		0,
-	)
 }
 
 VALID_LEAD_FS_INFO := @as(u32, 0x41615252)
@@ -141,39 +141,39 @@ FSInfo := struct {
 	last_known_avalible_cluster: u32,
 	trail_reserved: [u8; 12],
 	trail_signature: u32,
-}
 
-fs_info_sanity_check := fn(fs_info: FSInfo): uint {
-	ret := 0
-	if fs_info.lead_signature != VALID_LEAD_FS_INFO {
-		ret &= 1
-		log.warn("Invalid leading signature in FSInfo.\0")
-	}
-	if fs_info.last_known_free_cluster_count == 0xFFFFFFFF {
-		ret &= 2
-		log.warn("Last known free cluster count unknown.\0")
-	}
-	if fs_info.last_known_avalible_cluster == 0xFFFFFFFF {
-		ret &= 4
-		log.warn("Last known avalible cluster count unknown.\0")
-	}
-	if fs_info.trail_signature != VALID_TRAIL_FS_INFO {
-		ret &= 8
-		log.warn("Invalid trailing signature in FSInfo.\0")
+	sanity_check := fn(fs_info: FSInfo): uint {
+		ret := 0
+		if fs_info.lead_signature != VALID_LEAD_FS_INFO {
+			ret &= 1
+			log.warn("Invalid leading signature in FSInfo.\0")
+		}
+		if fs_info.last_known_free_cluster_count == 0xFFFFFFFF {
+			ret &= 2
+			log.warn("Last known free cluster count unknown.\0")
+		}
+		if fs_info.last_known_avalible_cluster == 0xFFFFFFFF {
+			ret &= 4
+			log.warn("Last known avalible cluster count unknown.\0")
+		}
+		if fs_info.trail_signature != VALID_TRAIL_FS_INFO {
+			ret &= 8
+			log.warn("Invalid trailing signature in FSInfo.\0")
+		}
+
+		return ret
 	}
 
-	return ret
-}
-
-new_fs_info := fn(): FSInfo {
-	lead_reserved := @as([u8; 480], idk)
-	trail_reserved := @as([u8; 12], idk)
-	return FSInfo.(
-		VALID_LEAD_FS_INFO,
-		lead_reserved,
-		0,
-		0,
-		trail_reserved,
-		VALID_TRAIL_FS_INFO,
-	)
+	new := fn(): FSInfo {
+		lead_reserved := @as([u8; 480], idk)
+		trail_reserved := @as([u8; 12], idk)
+		return FSInfo.(
+			VALID_LEAD_FS_INFO,
+			lead_reserved,
+			0,
+			0,
+			trail_reserved,
+			VALID_TRAIL_FS_INFO,
+		)
+	}
 }
\ No newline at end of file
diff --git a/sysdata/programs/filesystem_fat32/src/datetime.hb b/sysdata/programs/filesystem_fat32/src/datetime.hb
index fa6b589..4df0dc8 100644
--- a/sysdata/programs/filesystem_fat32/src/datetime.hb
+++ b/sysdata/programs/filesystem_fat32/src/datetime.hb
@@ -2,24 +2,25 @@ Date := struct {
 	year: u16,
 	month: u16,
 	day: u16,
+
+	compress_date := fn(year: u16, month: u16, day: u16): u16 {
+		return 0
+	}
+	decompress_date := fn(date: u16): Date {
+		return Date.(0, 0, 0)
+	}
 }
+
 Time := struct {
 	hour: u16,
 	minutes: u16,
 	seconds: u16,
-}
 
-compress_date := fn(year: u16, month: u16, day: u16): u16 {
-	return 0
-}
-decompress_date := fn(date: u16): Date {
-	return Date.(0, 0, 0)
-}
+	compress_time := fn(hour: u16, minutes: u16, seconds: u16): u16 {
+		return 0
+	}
 
-compress_time := fn(hour: u16, minutes: u16, seconds: u16): u16 {
-	return 0
-}
-
-decompress_time := fn(time: u16): Time {
-	return Time.(0, 0, 0)
+	decompress_time := fn(time: u16): Time {
+		return Time.(0, 0, 0)
+	}
 }
\ No newline at end of file
diff --git a/sysdata/programs/filesystem_fat32/src/main.hb b/sysdata/programs/filesystem_fat32/src/main.hb
index e15a16c..7117200 100644
--- a/sysdata/programs/filesystem_fat32/src/main.hb
+++ b/sysdata/programs/filesystem_fat32/src/main.hb
@@ -6,7 +6,7 @@ datetime := @use("datetime.hb")
 directory := @use("file.hb")
 bios_parameter_block := @use("bios_parameter_block.hb");
 .{bpb_sanity_check, ebr_sanity_check, fs_info_sanity_check} := bios_parameter_block;
-.{new_bpb, new_ebr, new_fs_info} := bios_parameter_block
+.{BiosParameterBlock, ExtendedBootRecord, FSInfo} := bios_parameter_block
 
 FAT12_THRESHOLD := 4085
 FAT16_THRESHOLD := 65525
@@ -29,9 +29,9 @@ calculate_fat_type := fn(sector_size: uint, total_clusters: uint): uint {
 }
 
 main := fn(): int {
-	bpb := new_bpb()
-	ebr := new_ebr()
-	fsi := new_fs_info()
+	bpb := BiosParameterBlock.new()
+	ebr := ExtendedBootRecord.new()
+	fsi := FSInfo.new()
 
 	fat_type := calculate_fat_type(1, 100)
 
@@ -39,9 +39,9 @@ main := fn(): int {
 		log.warn("filesystem_fat32 driver only supports Fat32.\0")
 	}
 
-	bsc := bpb_sanity_check(bpb)
-	esc := ebr_sanity_check(ebr)
-	fssc := fs_info_sanity_check(fsi)
+	bsc := bpb.sanity_check()
+	esc := ebr.sanity_check()
+	fssc := fsi.sanity_check()
 
 	msg_type := 0
 
diff --git a/sysdata/system_config.toml b/sysdata/system_config.toml
index 89830c9..d50fab8 100644
--- a/sysdata/system_config.toml
+++ b/sysdata/system_config.toml
@@ -34,11 +34,14 @@ resolution = "1024x768x24"
 # [boot.limine.ableos.modules.ps2_keyboard_driver]
 # path = "boot:///ps2_keyboard_driver.hbf"
 
-[boot.limine.ableos.modules.ps2_driver]
-path = "boot:///ps2_driver.hbf"
+# [boot.limine.ableos.modules.ps2_driver]
+# path = "boot:///ps2_driver.hbf"
 
 # [boot.limine.ableos.modules.sunset_client]
 # path = "boot:///sunset_client.hbf"
 
 # [boot.limine.ableos.modules.sunset_server]
 # path = "boot:///sunset_server.hbf"
+
+[boot.limine.ableos.modules.filesystem_fat32]
+path = "boot:///filesystem_fat32.hbf"