diff --git a/.cargo/config.toml b/.cargo/config.toml
new file mode 100644
index 0000000..f67bb53
--- /dev/null
+++ b/.cargo/config.toml
@@ -0,0 +1,7 @@
+[build]
+target = "x86_64-unknown-none"
+
+[target.x86_64-unknown-none]
+rustflags = [
+    "-C", "relocation-model=static",
+]
diff --git a/.github/workflows/rust-test.yml b/.github/workflows/rust-test.yml
index 451a68a..3da7c1e 100644
--- a/.github/workflows/rust-test.yml
+++ b/.github/workflows/rust-test.yml
@@ -45,7 +45,7 @@ jobs:
       - name: Format
         run: cargo fmt --all -- --check
       - name: Lint
-        run: cargo clippy --all-targets --all-features -- -D warnings
+        run: cargo clippy --lib --bins -- -D warnings
 
   tests:
     runs-on: ubuntu-latest
diff --git a/Cargo.lock b/Cargo.lock
index 23740b0..54839fc 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -5,3 +5,7 @@ version = 4
 [[package]]
 name = "rkos"
 version = "0.1.0"
+
+[[package]]
+name = "rkos-arch"
+version = "0.1.0"
diff --git a/crates/rkos-arch/Cargo.toml b/crates/rkos-arch/Cargo.toml
new file mode 100644
index 0000000..29a19b7
--- /dev/null
+++ b/crates/rkos-arch/Cargo.toml
@@ -0,0 +1,18 @@
+[package]
+name = "rkos-arch"
+version = "0.1.0"
+edition = "2024"
+authors.workspace = true
+categories.workspace = true
+keywords.workspace = true
+license.workspace = true
+description.workspace = true
+rust-version.workspace = true
+
+[dependencies]
+
+[lib]
+test = false
+doctest = false
+
+[features]
diff --git a/crates/rkos-arch/src/lib.rs b/crates/rkos-arch/src/lib.rs
new file mode 100644
index 0000000..27058bd
--- /dev/null
+++ b/crates/rkos-arch/src/lib.rs
@@ -0,0 +1,3 @@
+#![no_std]
+#![no_main]
+pub mod x86;
diff --git a/crates/rkos-arch/src/x86/link.ld b/crates/rkos-arch/src/x86/link.ld
new file mode 100644
index 0000000..ade506b
--- /dev/null
+++ b/crates/rkos-arch/src/x86/link.ld
@@ -0,0 +1,49 @@
+OUTPUT_ARCH(i386:x86-64)
+ENTRY(_start)
+
+
+/* x86_64 kernel base address */
+KERNEL_BASE_ADDRESS = 0x100000;
+
+SECTIONS {
+    . = KERNEL_BASE_ADDRESS;
+
+    /* kernel code */
+    .text : {
+        stext = .;              
+        *(.text.entry)          
+        *(.text .text.*)        
+        . = ALIGN(4096);
+        etext = .;              
+    }
+
+    /* kernel rodata */
+    .rodata : {
+        srodata = .;
+        *(.rodata .rodata.*)
+        . = ALIGN(4096);
+        erodata = .;
+    }
+
+    /* kernel data */
+    .data : {
+        sdata = .;
+        *(.data .data.*)
+        . = ALIGN(4096);
+        edata = .;
+    }
+
+    /* kernel bss */
+    .bss : {
+        sbss = .;
+        *(.bss.stack)           /* kernel stack */
+        *(.bss .bss.*)
+        *(COMMON)
+        . = ALIGN(4096);
+        ebss = .;
+    }
+
+    /* kernel end */
+    . = ALIGN(4096);
+    ekernel = .;
+}
diff --git a/crates/rkos-arch/src/x86/mod.rs b/crates/rkos-arch/src/x86/mod.rs
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/crates/rkos-arch/src/x86/mod.rs
@@ -0,0 +1 @@
+
diff --git a/crates/rkos/Cargo.toml b/crates/rkos/Cargo.toml
index 530d65a..4a4d212 100644
--- a/crates/rkos/Cargo.toml
+++ b/crates/rkos/Cargo.toml
@@ -13,4 +13,12 @@ rust-version.workspace = true
 
 
 # [lints]
-# workspace = true
\ No newline at end of file
+# workspace = true
+
+
+[[bin]]
+name = "rkos"
+path = "src/main.rs"
+test = false
+
+
diff --git a/crates/rkos/build.rs b/crates/rkos/build.rs
new file mode 100644
index 0000000..87f3ef8
--- /dev/null
+++ b/crates/rkos/build.rs
@@ -0,0 +1,15 @@
+use std::{env, path::PathBuf};
+fn main() {
+    if env::var("CARGO_CFG_TARGET_ARCH").unwrap_or_default() == "x86_64" {
+        let manifest_dir = PathBuf::from(env::var("CARGO_MANIFEST_DIR").unwrap());
+        // link scripts in rkos-arch/src/x86
+        let link_ld_path = manifest_dir
+            .parent()
+            .unwrap()
+            .join("rkos-arch")
+            .join("src")
+            .join("x86")
+            .join("link.ld");
+        println!("cargo:rustc-link-arg=-T{}", link_ld_path.display());
+    }
+}
diff --git a/crates/rkos/src/main.rs b/crates/rkos/src/main.rs
index e7a11a9..6e52051 100644
--- a/crates/rkos/src/main.rs
+++ b/crates/rkos/src/main.rs
@@ -1,3 +1,40 @@
-fn main() {
-    println!("Hello, world!");
+#![no_std]
+#![no_main]
+
+use core::arch::global_asm;
+use core::panic::PanicInfo;
+
+global_asm!(
+    r#"
+    .section .text.entry
+    .align 4
+    
+    .global multiboot_header
+    multiboot_header:
+    
+    .long 0x1badb002
+    .long 0x00010000
+    .long -(0x1badb002 + 0x00010000)
+
+    .long multiboot_header
+    .long stext
+    .long edata
+    .long ebss
+    .long _start
+
+    .global _start
+    _start:
+    .code32
+        mov eax, 0x4f4f4f4f
+        mov dword ptr [0xb8000], eax
+        
+    .loop:
+        hlt
+        jmp .loop
+    "#
+);
+
+#[panic_handler]
+fn panic(_info: &PanicInfo) -> ! {
+    loop {}
 }