diff --git a/qemu.sh b/qemu.sh
index 8330869..c96e696 100755
--- a/qemu.sh
+++ b/qemu.sh
@@ -7,7 +7,7 @@ KERNEL=build/kernel
 
 start() {
 	touch disk.img
-	sudo pkill -9 qemu-system-i386
+	# sudo pkill -9 qemu-system-i386
 	sudo qemu-system-i386 \
 		-gdb tcp::${QEMU_GDB_PORT} \
 		-monitor unix:${QEMU_SOCKET},server,nowait \
diff --git a/src/arch/x86/gdt.zig b/src/arch/x86/gdt.zig
index 4e6622e..844ba33 100644
--- a/src/arch/x86/gdt.zig
+++ b/src/arch/x86/gdt.zig
@@ -83,7 +83,7 @@ var gdt align(4) = [_]GDTEntry{
 
 // GDT descriptor register pointing at the GDT.
 var gdtr = GDTRegister{
-    .limit = u16(@sizeOf(@typeOf(gdt))),
+    .limit = @as(u16, @sizeOf(@TypeOf(gdt))),
     .base = &gdt[0],
 };
 
diff --git a/src/arch/x86/idt.zig b/src/arch/x86/idt.zig
index 21336bb..e644040 100644
--- a/src/arch/x86/idt.zig
+++ b/src/arch/x86/idt.zig
@@ -12,7 +12,7 @@ var idt_table: [256]IDTEntry = undefined;
 
 // IDT descriptor register pointing at the IDT.
 const idtr = IDTRegister{
-    .limit = u16(@sizeOf(@typeOf(idt_table))),
+    .limit = @as(u16, @sizeOf(@TypeOf(idt_table))),
     .base = &idt_table,
 };
 
@@ -68,21 +68,21 @@ pub fn initialize() void {
 }
 
 fn general_protection_fault() void {
-    kernel.println("general protection fault");
+    kernel.println("general protection fault", .{});
     hang();
 }
 
 fn debug_trap() void {
-    kernel.println("debug fault/trap");
-    kernel.println("dr7: 0b{b}", dr7());
+    kernel.println("debug fault/trap", .{});
+    kernel.println("dr7: 0b{b}", .{dr7()});
 }
 
 fn page_fault() void {
     const vaddr = cr2();
-    kernel.println("cr2: 0x{x}", vaddr);
-    kernel.println("phy: 0x{x}", paging.translate(vaddr));
-    kernel.println("pde: 0x{x} ({})", paging.pde(vaddr), vaddr >> 22);
-    kernel.println("pte: 0x{x} ({})", paging.pte(vaddr), vaddr >> 12);
+    kernel.println("cr2: 0x{x}", .{vaddr});
+    kernel.println("phy: 0x{x}", .{paging.translate(vaddr)});
+    kernel.println("pde: 0x{x} ({})", .{ paging.pde(vaddr), vaddr >> 22 });
+    kernel.println("pte: 0x{x} ({})", .{ paging.pte(vaddr), vaddr >> 12 });
     // paging.format();
     hang();
 }
diff --git a/src/arch/x86/interrupt.zig b/src/arch/x86/interrupt.zig
index edacc3f..2515970 100644
--- a/src/arch/x86/interrupt.zig
+++ b/src/arch/x86/interrupt.zig
@@ -35,12 +35,9 @@ var handlers = [_]fn () void{unhandled} ** 48;
 
 fn unhandled() noreturn {
     const n = isr.context.interrupt_n;
-    kernel.print("unhandled interrupt number {d}", n);
-    if (n < IRQ_0) {
-        kernel.println(" (exception)");
-    } else {
-        kernel.println(" (IRQ number {d})", n - IRQ_0);
-    }
+    kernel.print("unhandled interrupt number {d}", .{n});
+    if (n < IRQ_0) kernel.println(" (exception)", .{});
+    if (n >= IRQ_0) kernel.println(" (IRQ number {d})", .{n - IRQ_0});
     hang();
 }
 
@@ -57,10 +54,11 @@ export fn interruptDispatch() void {
     switch (n) {
         // Exceptions.
         EXCEPTION_0...EXCEPTION_31 => {
-            kernel.println("");
-            kernel.println("num: {}", isr.context.interrupt_n);
-            kernel.println("err: {}", isr.context.error_code);
-            kernel.println("ip:  0x{x}", isr.context.eip);
+            kernel.println("", .{});
+            kernel.println("num: {}", .{n});
+            kernel.println("err: {}", .{@truncate(u8, isr.context.error_code)});
+            kernel.println("ip:  0x{x}", .{@truncate(u16, isr.context.eip)});
+            kernel.println("ip:  0x{x}", .{@truncate(u16, isr.context.eip >> 16)});
             return handlers[n]();
         },
 
@@ -171,16 +169,18 @@ pub fn remapPIC() void {
     picwait();
 }
 
-pub fn maskIRQ(irq: u8, mask: bool) void {
+pub fn maskIRQ(irq: u8, comptime mask: bool) void {
     if (irq > 15) return;
     // Figure out if master or slave PIC owns the IRQ.
-    const port = if (irq < 8) u16(PIC1_DATA) else u16(PIC2_DATA);
+    const port = @as(u16, if (irq < 8) PIC1_DATA else PIC2_DATA);
     const old = inb(port); // Retrieve the current mask.
 
     // Mask or unmask the interrupt.
-    const shift = @intCast(u3, irq % 8);
-    if (mask) outb(port, old | (u8(1) << shift));
-    if (!mask) outb(port, old & ~(u8(1) << shift));
+    const shift = @truncate(u3, irq % 8);
+    // const shift = @truncate(u3, if (irq < 8) irq else irq - 8);
+    const bit = @as(u8, 1) << shift;
+    if (mask) outb(port, old | bit);
+    if (!mask) outb(port, old & ~bit);
     const new = inb(port); // Retrieve the current mask.
 }
 
diff --git a/src/arch/x86/isr.zig b/src/arch/x86/isr.zig
index 3ef0f45..d2df8b6 100644
--- a/src/arch/x86/isr.zig
+++ b/src/arch/x86/isr.zig
@@ -66,7 +66,7 @@ pub const Context = packed struct {
     ss: u32,
 
     pub inline fn setReturnValue(self: *volatile Context, value: var) void {
-        self.registers.eax = if (@typeOf(value) == bool) @boolToInt(value) else @intCast(u32, value);
+        self.registers.eax = if (@TypeOf(value) == bool) @boolToInt(value) else @intCast(u32, value);
     }
 };
 
diff --git a/src/arch/x86/main.zig b/src/arch/x86/main.zig
index a06fb55..09b1fb4 100644
--- a/src/arch/x86/main.zig
+++ b/src/arch/x86/main.zig
@@ -1,4 +1,3 @@
-// usingnamespace @import("kernel");
 usingnamespace @import("index.zig");
 
 /// x86 specific intialization
@@ -7,6 +6,5 @@ pub fn x86_main(info: *const kernel.multiboot.MultibootInfo) void {
     idt.initialize();
     pmem.initialize(info);
     paging.initialize();
-    // enable interrupts
     sti();
 }
diff --git a/src/arch/x86/paging.zig b/src/arch/x86/paging.zig
index e101918..aefc4fc 100644
--- a/src/arch/x86/paging.zig
+++ b/src/arch/x86/paging.zig
@@ -36,7 +36,7 @@ pub fn unmap(virt: usize) void {
     if (translate(virt)) |phys| {
         pmem.free(phys);
     } else {
-        kernel.println("can't unmap 0x{x} because it is not mapped.", virt);
+        kernel.println("can't unmap 0x{x} because it is not mapped.", .{virt});
     }
 }
 
@@ -67,12 +67,12 @@ pub fn format() void {
     i = 0;
     while (i < 1024) : (i += 1) {
         if (PD[i] == 0) continue;
-        kernel.println("p2[{}] -> 0x{x}", i, PD[i]);
+        kernel.println("p2[{}] -> 0x{x}", .{ i, PD[i] });
         if (PD[i] & HUGE != 0) continue;
         var j: usize = 0;
         while (j < 1024) : (j += 1) {
             var entry: PageEntry = PT[i * 1024 + j];
-            if (entry != 0) kernel.println("p2[{}]p1[{}] -> 0x{x}", i, j, entry);
+            if (entry != 0) kernel.println("p2[{}]p1[{}] -> 0x{x}", .{ i, j, entry });
         }
     }
 }
diff --git a/src/arch/x86/pmem.zig b/src/arch/x86/pmem.zig
index 4ab76a7..d720b28 100644
--- a/src/arch/x86/pmem.zig
+++ b/src/arch/x86/pmem.zig
@@ -28,7 +28,7 @@ pub inline fn available_MiB() usize {
 //
 pub fn allocate() !usize {
     if (available() == 0) {
-        kernel.println("out of memory");
+        kernel.println("out of memory", .{});
         return error.OutOfMemory;
     }
     stack_index -= 1;
@@ -82,12 +82,15 @@ pub fn initialize(info: *const kernel.multiboot.MultibootInfo) void {
             free(start);
 
         // Go to the next entry in the memory map.
-        map += entry.size + @sizeOf(@typeOf(entry.size));
+        map += entry.size + @sizeOf(@TypeOf(entry.size));
     }
 
-    kernel.println("available memory: {d} MiB ", available() / 1024 / 1024);
+    const a = available();
+    kernel.println("available memory: {} MiB ", .{a});
+    // kernel.println("available memory: {d} MiB ", .{available() / 1024 / 1024});
+    hang();
 }
 
 pub fn format() void {
-    kernel.println("physframes left: {d} ({d} MiB)", stack_index, available_MiB());
+    kernel.println("physframes left: {d} ({d} MiB)", .{ stack_index, available_MiB() });
 }
diff --git a/src/console.zig b/src/console.zig
index e2e1dc2..15ce322 100644
--- a/src/console.zig
+++ b/src/console.zig
@@ -31,17 +31,17 @@ const commands = [_]Command{
 
 fn execute(input: []u8) void {
     for (commands) |c| if (std.mem.eql(u8, input, c.name)) return c.f();
-    println("{}: command not found, list of available commands:", input);
-    for (commands) |c| println("{}", c.name);
+    println("{}: command not found, list of available commands:", .{input});
+    for (commands) |c| println("{}", .{c.name});
 }
 
 pub fn keypress(char: u8) void {
     // this is a custom "readline" capped at 10 characters
     switch (char) {
         '\n' => {
-            print("\n");
+            print("\n", .{});
             if (command_len > 0) execute(command[0..command_len]);
-            print("> ");
+            print("> ", .{});
             command_len = 0;
         },
         '\x00' => return,
@@ -70,7 +70,7 @@ pub fn loop() void {
     input_ring.init() catch unreachable;
     input_ring.task = task.current_task;
     ps2.keyboard_callback = keyboard_callback;
-    print("> ");
+    print("> ", .{});
     while (true) {
         while (input_ring.read()) |c| keypress(c);
         task.block(.IOWait);
diff --git a/src/driver/ide.zig b/src/driver/ide.zig
index 5b90de7..ee81220 100644
--- a/src/driver/ide.zig
+++ b/src/driver/ide.zig
@@ -30,14 +30,14 @@ const ATA_CMD_IDENTIFY_PACKET = 0xA1;
 const ATA_CMD_IDENTIFY = 0xEC;
 
 // Status:
-const ATA_SR_BSY = 0x80; // Busy
+const ATA_SR_BUSY = 0x80;
 const ATA_SR_DRDY = 0x40; // Drive ready
 const ATA_SR_DF = 0x20; // Drive write fault
 const ATA_SR_DSC = 0x10; // Drive seek complete
 const ATA_SR_DRQ = 0x08; // Data request ready
 const ATA_SR_CORR = 0x04; // Corrected data
-const ATA_SR_IDX = 0x02; // Index
-const ATA_SR_ERR = 0x01; // Error
+const ATA_SR_IDX = 0x02;
+const ATA_SR_ERR = 0x01;
 
 // Registers:
 const ATA_REG_DATA = 0x00;
@@ -116,7 +116,7 @@ const IDEDevice = struct {
                 err = 1;
                 break;
             } // If Err, Device is not ATA.
-            if ((status & ATA_SR_BSY == 0) and (status & ATA_SR_DRQ != 0)) break; // Everything is right.
+            if ((status & ATA_SR_BUSY == 0) and (status & ATA_SR_DRQ != 0)) break; // Everything is right.
         }
 
         // (IV) Probe for ATAPI Devices:)
@@ -163,7 +163,7 @@ const IDEDevice = struct {
 
     inline fn poll(self: IDEDevice) void {
         for ([_]u8{ 0, 1, 2, 3 }) |_| _ = self.read(ATA_REG_ALTSTATUS); // wait 100ns per call
-        while (self.read(ATA_REG_STATUS) & ATA_SR_BSY != 0) {} // Wait for BSY to be zero.
+        while (self.read(ATA_REG_STATUS) & ATA_SR_BUSY != 0) {} // Wait for BSY to be zero.
     }
     inline fn poll_check(self: IDEDevice) !void {
         // (I) Delay 400 nanosecond for BSY to be set:
@@ -230,12 +230,11 @@ const IDEDevice = struct {
     }
 
     pub fn format(self: IDEDevice) void {
-        kernel.println(
-            "[ide] {} drive ({}MB) - {}",
-            if (self.idetype == 0) "ATA" else "ATAPI",
+        kernel.println("[ide] {} drive ({}MB) - {}", .{
+            if (self.idetype == 0) "ATA  " else "ATAPI",
             self.size * 512 / 1024 / 1024,
             self.model,
-        );
+        });
     }
 
     fn ata_access(self: *IDEDevice, direction: u8, lba: u64, numsects: u8, selector: u16, buf: usize) !void {
@@ -279,7 +278,7 @@ const IDEDevice = struct {
         }
 
         // (III) Wait if the drive is busy;
-        while (self.read(ATA_REG_STATUS) & ATA_SR_BSY != 0) {} // Wait if busy.)
+        while (self.read(ATA_REG_STATUS) & ATA_SR_BUSY != 0) {} // Wait if busy.)
 
         // (IV) Select Drive from the controller;
         if (lba_mode == 0) self.write(ATA_REG_HDDEVSEL, 0xA0 | (self.drive << 4) | head); // Drive & CHS.
@@ -321,7 +320,6 @@ const IDEDevice = struct {
         }
         if (!dma and direction == 0) {
             // PIO Read.
-            kernel.println("pio read");
             var i: u8 = 0;
             while (i < numsects) : (i = i + 1) {
                 var iedi = buf + i * (words * 2);
@@ -393,16 +391,16 @@ pub fn ide_block_read(lba: u64, buf: *[512]u8) void {
 }
 
 pub fn init(dev: kernel.pci.PciDevice) void {
-    kernel.println("-- ide init --");
-    kernel.print("[ide] ");
+    kernel.println("-- ide init --", .{});
+    kernel.print("[ide] ", .{});
     dev.format();
     assert(dev.header_type() == 0x0); // mass storage device
 
     dev.config_write(@intCast(u8, 0xfe), 0x3c);
     if (dev.intr_line() == 0xfe) {
-        kernel.println("[ide] detected ATA device");
+        kernel.println("[ide] detected ATA device", .{});
     } else {
-        kernel.println("[ide] Potential SATA device. Not implemented. Hanging");
+        kernel.println("[ide] Potential SATA device. Not implemented. Hanging", .{});
         x86.hang();
     }
 
diff --git a/src/driver/virtio.zig b/src/driver/virtio.zig
index 93ad964..8debc23 100644
--- a/src/driver/virtio.zig
+++ b/src/driver/virtio.zig
@@ -1,7 +1,7 @@
 usingnamespace @import("index.zig");
 
 pub fn init(dev: kernel.pci.PciDevice) void {
-    kernel.println("-- virtio-block init --");
+    kernel.println("-- virtio-block init --", .{});
     dev.format();
     assert(dev.header_type() == 0x0); // mass storage device
     assert(dev.subsystem() == 0x2); // virtio-block
@@ -10,7 +10,7 @@ pub fn init(dev: kernel.pci.PciDevice) void {
     const intr_pin = dev.config_read(u8, 0x3d);
     const min_grant = dev.config_read(u8, 0x3e);
     const max_lat = dev.config_read(u8, 0x3f);
-    kernel.println("{x} {} {} {}", intr_line, intr_pin, min_grant, max_lat);
+    kernel.println("{x} {} {} {}", .{ intr_line, intr_pin, min_grant, max_lat });
 
     // all virtio
     // 0                   1                   2                   3
diff --git a/src/main.zig b/src/main.zig
index e4d0790..2da67cb 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -2,10 +2,10 @@ usingnamespace @import("kernel");
 
 // Place the header at the very beginning of the binary.
 export const multiboot_header align(4) linksection(".multiboot") = multiboot: {
-    const MAGIC = u32(0x1BADB002); // multiboot magic
-    const ALIGN = u32(1 << 0); // Align loaded modules at 4k
-    const MEMINFO = u32(1 << 1); // Receive a memory map from the bootloader.
-    const ADDR = u32(1 << 16); // Load specific addr
+    const MAGIC = @as(u32, 0x1BADB002); // multiboot magic
+    const ALIGN = @as(u32, 1 << 0); // Align loaded modules at 4k
+    const MEMINFO = @as(u32, 1 << 1); // Receive a memory map from the bootloader.
+    const ADDR = @as(u32, 1 << 16); // Load specific addr
     const FLAGS = ALIGN | MEMINFO; // Combine the flags.
 
     break :multiboot multiboot.MultibootHeader{
@@ -19,29 +19,30 @@ export const multiboot_header align(4) linksection(".multiboot") = multiboot: {
 export fn kmain(magic: u32, info: *const multiboot.MultibootInfo) noreturn {
     assert(magic == multiboot.MULTIBOOT_BOOTLOADER_MAGIC);
     clear();
-    println("--- x86 initialization ---");
+    asm volatile ("movd %%edi, %%xmm0");
+    println("--- x86 initialization ---", .{});
     x86.x86_main(info);
-    println("--- core initialization ---");
+    println("--- core initialization ---", .{});
     vmem.init();
     pci.scan();
-    println("--- finished booting --- ");
+    println("--- finished booting --- ", .{});
 
     task.cleaner_task = task.new(@ptrToInt(task.cleaner_loop)) catch unreachable;
     _ = task.new(@ptrToInt(topbar)) catch unreachable;
     _ = task.new(@ptrToInt(console.loop)) catch unreachable;
 
     var buf = vmem.create([512]u8) catch unreachable;
-    println("buf at 0x{x}", @ptrToInt(buf));
+    println("buf at 0x{x}", .{@ptrToInt(buf)});
     driver.ide.first_ide_drive.read(2, buf);
 
     const sig = buf[56..58];
-    println("sig: {x}", sig);
+    println("sig: {x}", .{sig});
 
     task.terminate();
 }
 
 pub fn panic(a: []const u8, b: ?*builtin.StackTrace) noreturn {
-    println("{}", a);
-    println("{}", b);
+    println("{}", .{a});
+    println("{}", .{b});
     while (true) asm volatile ("hlt");
 }
diff --git a/src/pci/pci.zig b/src/pci/pci.zig
index b38c8e8..4567329 100644
--- a/src/pci/pci.zig
+++ b/src/pci/pci.zig
@@ -41,15 +41,10 @@ pub const PciDevice = struct {
     }
 
     pub fn format(self: PciDevice) void {
-        print("{}:{}.{}", self.bus, self.slot, self.function);
-        print(" {x},{x:2}", self.class(), self.subclass());
-        print(" 0x{x} 0x{x}", self.vendor, self.device());
-        if (self.driver()) |d| {
-            print(" {}", d.name);
-        } else {
-            print(" (none)");
-        }
-        println("");
+        print("{}:{}.{}", .{ self.bus, self.slot, self.function });
+        print(" {x},{x:2}", .{ self.class(), self.subclass() });
+        print(" 0x{x} 0x{x}", .{ self.vendor, self.device() });
+        println(" {}", .{if (self.driver()) |d| d.name else " (none)"});
     }
 
     pub fn driver(self: PciDevice) ?Driver {
@@ -110,7 +105,7 @@ pub const PciDevice = struct {
     pub inline fn config_write(self: PciDevice, value: var, comptime offset: u8) void {
         // ask for access before writing config
         x86.outl(PCI_CONFIG_ADDRESS, self.address(offset));
-        switch (@typeOf(value)) {
+        switch (@TypeOf(value)) {
             // read the correct size
             u8 => return x86.outb(PCI_CONFIG_DATA, value),
             u16 => return x86.outw(PCI_CONFIG_DATA, value),
@@ -177,7 +172,7 @@ pub fn scan() void {
 
 pub fn lspci() void {
     var slot: u5 = 0;
-    println("b:s.f c, s vendor device driver");
+    println("b:s.f c, s vendor device driver", .{});
     while (slot < 31) : (slot += 1) {
         if (PciDevice.init(0, slot, 0)) |dev| {
             var function: u3 = 0;
diff --git a/src/ps2.zig b/src/ps2.zig
index e04f7b6..3075a8e 100644
--- a/src/ps2.zig
+++ b/src/ps2.zig
@@ -3,8 +3,7 @@ usingnamespace @import("index.zig");
 
 const PS2_DATA = 0x60;
 const PS2_STATUS = 0x64;
-const KEYMAP_MAX = 59;
-const KEYMAP_US = [_][2]u8{
+const KEYMAP_US = [_][]const u8{
     "\x00\x00",
     "\x00\x00", //escape
     "1!",
diff --git a/src/ring_buffer.zig b/src/ring_buffer.zig
index 1149146..ff68088 100644
--- a/src/ring_buffer.zig
+++ b/src/ring_buffer.zig
@@ -12,7 +12,7 @@ pub fn Ring(comptime T: type) type {
 
         //TODO: allocator argument and remove the namespace
         pub fn init(ring: *Self) !void {
-            ring.buffer = try vmem.create(@typeOf(ring.buffer.*));
+            ring.buffer = try vmem.create(@TypeOf(ring.buffer.*));
         }
 
         pub fn write(ring: *Self, elem: T) void {
diff --git a/src/task.zig b/src/task.zig
index 0cee8f3..0133307 100644
--- a/src/task.zig
+++ b/src/task.zig
@@ -175,11 +175,11 @@ pub fn terminate() noreturn {
 pub fn cleaner_loop() noreturn {
     while (true) {
         if (terminated_tasks.popFirst()) |n| {
-            notify("DESTROYING {}", n.data.tid);
+            notify("DESTROYING {}", .{n.data.tid});
             n.data.destroy();
             vmem.destroy(n);
         } else {
-            notify("NOTHING TO CLEAN");
+            notify("NOTHING TO CLEAN", .{});
             block(.Paused);
         }
     }
@@ -201,7 +201,7 @@ fn unlock_scheduler() void {
         postpone_task_switches_counter -= 1;
         if (postpone_task_switches_flag == true and postpone_task_switches_counter == 0) {
             postpone_task_switches_flag = false;
-            notify("AFTER POSTPONE");
+            notify("AFTER POSTPONE", .{});
             schedule();
         }
         IRQ_disable_counter -= 1;
@@ -215,7 +215,7 @@ pub fn preempt() void {
 
     update_time_used();
     if (ready_tasks.first == null) {
-        notify("NO PREEMPT SINGLE TASK");
+        notify("NO PREEMPT SINGLE TASK", .{});
         time.task_slice_remaining = 0;
         return;
     }
@@ -251,7 +251,11 @@ pub fn switch_to(chosen: *TaskNode) void {
     }
 
     // don't inline the asm function, it needs to ret
-    @noInlineCall(switch_tasks, chosen.data.esp, @ptrToInt(old_task_esp_addr));
+    @call(
+        .{ .modifier = .never_inline },
+        switch_tasks,
+        .{ chosen.data.esp, @ptrToInt(old_task_esp_addr) },
+    );
 }
 
 pub var CPU_idle_time: u64 = 0;
@@ -267,7 +271,7 @@ pub fn schedule() void {
     // postponed
     if (postpone_task_switches_counter != 0 and current_task.data.state == .Running) {
         postpone_task_switches_flag = true;
-        notify("POSTPONING SCHEDULE");
+        notify("POSTPONING SCHEDULE", .{});
         return;
     }
     // next task
@@ -284,7 +288,7 @@ pub fn schedule() void {
     }
     // single task
     if (current_task.data.state == .Running) {
-        notify("SINGLE TASK");
+        notify("SINGLE TASK", .{});
         time.task_slice_remaining = 0;
         return;
     }
@@ -297,7 +301,7 @@ fn idle_mode() void {
     assert(current_task.data.state != .Running);
     assert(current_task.data.state != .ReadyToRun);
 
-    notify("IDLE");
+    notify("IDLE", .{});
 
     // borrow the current task
     const borrow = current_task;
@@ -323,7 +327,7 @@ fn idle_mode() void {
     }
 }
 
-pub fn notify(comptime message: []const u8, args: ...) void {
+pub fn notify(comptime message: []const u8, args: var) void {
     const bg = vga.background;
     const fg = vga.foreground;
     const cursor = vga.cursor;
@@ -341,18 +345,18 @@ pub fn notify(comptime message: []const u8, args: ...) void {
 }
 
 pub fn format_short() void {
-    print("{}R {}B {}S", ready_tasks.len, blocked_tasks.len, sleeping_tasks.len);
+    print("{}R {}B {}S", .{ ready_tasks.len, blocked_tasks.len, sleeping_tasks.len });
 }
 
 pub fn format() void {
     update_time_used();
 
-    println("{}", current_task.data);
+    println("{}", .{current_task.data});
 
     var it = ready_tasks.first;
-    while (it) |node| : (it = node.next) println("{}", node.data);
+    while (it) |node| : (it = node.next) println("{}", .{node.data});
     it = blocked_tasks.first;
-    while (it) |node| : (it = node.next) println("{}", node.data);
+    while (it) |node| : (it = node.next) println("{}", .{node.data});
     var sit = sleeping_tasks.first;
-    while (sit) |node| : (sit = node.next) println("{} {}", node.data.data, node.counter);
+    while (sit) |node| : (sit = node.next) println("{} {}", .{ node.data.data, node.counter });
 }
diff --git a/src/time.zig b/src/time.zig
index 1734908..546bf20 100644
--- a/src/time.zig
+++ b/src/time.zig
@@ -23,9 +23,9 @@ pub fn uptime() void {
     const offset_s: u64 = offset_ms / 1000;
     offset_ms = @mod(offset_ms / 100, 10);
 
-    print("{}.{:.3}", offset_s, offset_ms);
+    print("{}.{:.3}", .{ offset_s, offset_ms });
 }
 
 pub fn utilisation() void {
-    print("{}%", 100 * (offset_us - task.CPU_idle_time) / offset_us);
+    print("{}%", .{100 * (offset_us - task.CPU_idle_time) / offset_us});
 }
diff --git a/src/vga.zig b/src/vga.zig
index 0e4a329..d371a9f 100644
--- a/src/vga.zig
+++ b/src/vga.zig
@@ -53,10 +53,10 @@ pub fn disableCursor() void {
 }
 
 const Errors = error{};
-pub fn print(comptime format: []const u8, args: ...) void {
+pub fn print(comptime format: []const u8, args: var) void {
     var a = std.fmt.format({}, Errors, printCallback, format, args);
 }
-pub fn println(comptime format: []const u8, args: ...) void {
+pub fn println(comptime format: []const u8, args: var) void {
     var a = print(format ++ "\n", args);
 }
 pub fn clear() void {
@@ -74,12 +74,11 @@ pub fn topbar() void {
         vga.cursor_enabled = false;
 
         time.uptime();
-        print(" | ");
+        print(" | ", .{});
         time.utilisation();
-        print(" | ");
+        print(" | ", .{});
         task.format_short();
-        // print(" ({})", task.IRQ_disable_counter);
-        println("");
+        println("", .{});
 
         vga.cursor_enabled = true;
         vga.cursor = cursor;