Hello and welcome,
About fifteen AUR packages have been running on one of my PCs for a few years, and as many from Arch.
VMPK is available on the arch repositories:
pacman -Ss VMPK
community/vmpk 0.8.8-1 (pro-audio)
Virtual MIDI Piano Keyboard
https://wiki.artixlinux.org/Main/Repositories
cwm is available on AUR repositories:
yay cwm
7 aur/rocwmma 5.4.1-1 (+0 0.00)
Library for accelerating mixed precision matrix multiplication
6 aur/hikari-darcs 1:1.1.0.20200502185221-1 (+0 0.00) (Obsolète : 2022-11-01)
Stacking Wayland compositor with additional tiling capabilities, heavily inspired by the Calm Window manager (cwm)
5 aur/mcwm-git 20130209.2.r11.gee7d9df-3 (+4 0.00)
A minimalist floating window manager written on top of the XCB
4 aur/mcwm 20130209.2-5 (+5 0.00)
A minimalist floating window manager written on top of the XCB
3 aur/cwm-git 20220430-1 (+9 0.00)
Fork of calmwm, a clean and lightweight window manager (git version)
2 aur/hikari 1:2.3.3-4 (+16 0.01)
Stacking Wayland compositor with additional tiling capabilities, heavily inspired by the Calm Window manager (cwm)
1 aur/cwm 7.1-3 (+27 0.00)
Fork of calmwm, a clean and lightweight window manager
==> Paquets à installer (ex. 1 2 3, 1-3 or ^4)