Unable to install on CachyOS (Arch-based)

[Vistaus]

I'm getting this error:

Fetching the maccel github repo
Cloning into '.'...
remote: Enumerating objects: 96, done.
remote: Counting objects: 100% (96/96), done.
remote: Compressing objects: 100% (88/88), done.
remote: Total 96 (delta 4), reused 50 (delta 2), pack-reused 0 (from 0)
Receiving objects: 100% (96/96), 2.20 MiB | 23.01 MiB/s, done.
Resolving deltas: 100% (4/4), done.

Installing the driver (kernel module)
rm -rf `pwd`/driver/.*.cmd `pwd`/driver/*.ko `pwd`/driver/*.mod `pwd`/driver/*.mod.* `pwd`/driver/*.symvers `pwd`/driver/*.order `pwd`/driver/*.o
rmmod: ERROR: Module maccel is not currently loaded
make: *** [Makefile:31: uninstall] Error 1
make CC=gcc EXTRA_CFLAGS= -C /lib/modules/`uname -r`/build M=`pwd`/driver
make[1]: Entering folder '/usr/lib/modules/6.11.0-5-cachyos-lto/build'
make[1]: *** No targets and Makefile found.  Cancelled.
make[1]: Leaving folder '/usr/lib/modules/6.11.0-5-cachyos-lto/build'
make: *** [Makefile:13: build] Error 2

The headers are installed:

ls /lib/modules
6.11.0-5-cachyos-lto/  6.11.1-2-cachyos-lto/

~/Downloads
❯ ls /lib/modules/6.11.1-2-cachyos-lto/
build/   modules.alias      modules.builtin            modules.builtin.bin      modules.dep      modules.devname  modules.softdep  modules.symbols.bin  pkgbase
kernel/  modules.alias.bin  modules.builtin.alias.bin  modules.builtin.modinfo  modules.dep.bin  modules.order    modules.symbols  modules.weakdep      vmlinuz

Distro: CachyOS Kernel: Linux cachyos-HX90 6.11.0-5-cachyos-lto #1 SMP PREEMPT_DYNAMIC Fri, 20 Sep 2024 10:53:20 +0000 x86_64 GNU/Linux DE: KDE Plasma 6.1.5 Wayland

How do I solve this issue?