pkg install qemu-system-x86_64-headless qemu-utils wget

(incase wget is not installed)

qemu-img create -f qcow2 alpine.qcow2 4G
wget https://dl-cdn.alpinelinux.org/alpine/v3.13/releases/x86_64/alpine-virt-3.13.2-x86_64.iso 

Next, create boot.sh or any name and add the content

qemu-system-x86_64 -smp 2 -m 2040 \
-drive file=alpine.qcow2,if=virtio \
-netdev user,id=n1,hostfwd=tcp::6379-:6379,hostfwd=tcp::9000-:9000 \
-device virtio-net,netdev=n1 \
-cdrom alpine-virt-3.13.2-x86_64.iso -boot d \
-nographic

Then, launch boot.sh with:

bash boot.sh

Taken from HERE

Boot into the installation ISO using qemu,
Login into shell with user "root" and no password,
Create a directory with the command mkdir -p /etc/udhcpc/
Create a file /etc/udhcpc/udhcpc.conf with the line RESOLV_CONF="no" preventing udhcpd (Busybox' DHCP server) from overwriting /etc/resolv.conf,
Create /etc/resolv.conf with

nameserver 8.8.8.8
nameserver 8.8.4.4

entries,
Conclude the installation via setup-alpine as usual.

Now press enter mutiple times to choose the default until it shows ssh and choose none
When it shows the disk selection, choose vda ( or sda if it only shows sda )
Then type sys on the disk type screen
Press y and enter key

After installation, run the command:

poweroff

Edit the boot.sh and remove the cdrom line and run the command again:

bash boot.sh

Then login with the credentials you entered in the setup

And your done!

Instead of pkg, use apt (in Debian or Ubuntu) or pacman -S (in Arch Linux "if you even have one") or zypper (in openSUSE)
Same instructions as Termux Version

Install QEmu HERE
Download Alpine HERE

Instead of boot.sh, use boot.bat (or any name but with .bat)
Use the content here instead:
First setup:

qemu-system-x86_64 -smp 2 -m 2040 -drive file=alpine.qcow2,if=virtio -netdev user,id=n1,hostfwd=tcp::6379-:6379,hostfwd=tcp::9000-:9000 -device virtio-net,netdev=n1 -cdrom alpine-virt-3.13.2-x86_64.iso -boot d -nographic