try some module stuff

code/Makefile

@@ -1 +1,7 @@
+obj-m += module.o
 
+modules:
+	make -C /lib/modules/$(shell uname -r)/build M=$(shell pwd) modules
+
+clean:
+	make -C /lib/modules/$(shell uname -r)/build M=$(shell pwd) clean

code/module.c

@@ -0,0 +1,21 @@
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/proc_fs.h>
+#include <linux/uaccess.h>
+
+static int
+mod_init(void)
+{
+	printk(KERN_INFO "module init");
+	return 0;
+}
+
+static void
+mod_exit(void)
+{
+	printk(KERN_INFO "module exit");
+}
+
+module_init(mod_init);
+module_exit()

flake.nix

@@ -24,6 +24,7 @@
           gnumake
           clang-tools
           gcc
+          linuxHeaders
           texlab
           texliveFull
         ];