the unexpected paperwork update. paperwork rp? And also includes ntnet upgrade because fuck it.

code/modules/modular_computers/computers/item/computer_components.dm

@@ -6,6 +6,14 @@
 		to_chat(user, "<span class='warning'>This component is too large for \the [src]!</span>")
 		return FALSE
 
+	if(H.expansion_hw)
+		if(LAZYLEN(expansion_bays) >= max_bays)
+			to_chat(user, "<span class='warning'>All of the computer's expansion bays are filled.</span>")
+			return FALSE
+		if(LAZYACCESS(expansion_bays, H.device_type))
+			to_chat(user, "<span class='warning'>The computer immediately ejects /the [H] and flashes an error: \"Hardware Address Conflict\".</span>")
+			return FALSE
+
 	if(all_components[H.device_type])
 		to_chat(user, "<span class='warning'>This computer's hardware slot is already occupied by \the [all_components[H.device_type]].</span>")
 		return FALSE
@@ -20,6 +28,8 @@
 	if(user && !user.transferItemToLoc(H, src))
 		return FALSE
 
+	if(H.expansion_hw)
+		LAZYSET(expansion_bays, H.device_type, H)
 	all_components[H.device_type] = H
 
 	to_chat(user, "<span class='notice'>You install \the [H] into \the [src].</span>")
@@ -32,7 +42,9 @@
 /obj/item/modular_computer/proc/uninstall_component(obj/item/computer_hardware/H, mob/living/user = null)
 	if(H.holder != src) // Not our component at all.
 		return FALSE
+	if(H.expansion_hw)
 
+		LAZYREMOVE(expansion_bays, H.device_type)
 	all_components.Remove(H.device_type)
 
 	to_chat(user, "<span class='notice'>You remove \the [H] from \the [src].</span>")
@@ -43,6 +55,7 @@
 	if(enabled && !use_power())
 		shutdown_computer()
 	update_icon()
+	return TRUE
 
 
 // Checks all hardware pieces to determine if name matches, if yes, returns the hardware piece, otherwise returns null