diff --git a/kernel/config b/kernel/config
index 225b7a9..136fad6 100644
--- a/kernel/config
+++ b/kernel/config
@@ -55,6 +55,25 @@ CONFIG_IKCONFIG_PROC=y
 # Embed the .config in the kernel and expose via /proc/config.gz
 # Invaluable for debugging and rebuilding
 
+# =============================================================================
+# BUS & BLOCK LAYER — Required by NVMe, GPU, NIC, USB
+# =============================================================================
+
+CONFIG_PCI=y
+CONFIG_PCI_MSI=y
+# PCI Express bus — required by NVMe, GPU (RTX 5090), NIC (RTL8125BN), USB
+# MSI/MSI-X interrupts required for modern PCIe devices
+
+CONFIG_BLOCK=y
+# Block device layer — required by NVMe, loop devices, and all storage
+
+CONFIG_PHYLIB=y
+# PHY (Physical Layer) library — required by R8169 Ethernet driver
+# Automatically selects REALTEK_PHY
+
+CONFIG_NET=y
+# Networking support — top-level dependency for all network drivers
+
 # =============================================================================
 # CPU — AMD Ryzen 9 9950X3D (Zen 5, 16C/32T, 3D V-Cache)
 # =============================================================================
@@ -406,10 +425,9 @@ CONFIG_NET_VENDOR_BROADCOM=n
 CONFIG_NET_VENDOR_QUALCOMM=n
 # Disable unused network drivers
 
-CONFIG_INPUT_TOUCHSCREEN=n
 CONFIG_INPUT_TABLET=n
 CONFIG_INPUT_MISC=n
-# Disable unused input devices
+# Disable unused input devices (INPUT_TOUCHSCREEN already set above)
 
 # =============================================================================
 # MISC