How to install azul repository

First install the repository keyring. From the terminal:

wget https://osdn.net/projects/azul/storage/azul-keyring-20211121-1.1-any.pkg.tar.zst

Manually install the keyring. From the terminal:

sudo pacman -U azul-keyring-20211121-1.1-any.pkg.tar.zst

Edit the pacman.conf file:

sudo nano /etc/pacman.conf

To the end of the file, add:

[azul]
Include = /etc/pacman.d/azul-mirrorlist

Ctrl+o to save the file, and Ctrl+x to exit.

Now, Create the azul-mirrorlist file. From the terminal:

sudo nano /etc/pacman.d/azul-mirrorlist

Copy an paste:

# Mirror 1:
Server = https://mirrors.tuna.tsinghua.edu.cn/osdn/storage/g/a/az/azul/

# Mirror 2:
Server = https://ftp.iij.ad.jp/pub/osdn.jp/storage/g/a/az/azul/

# Mirror 3:
Server = https://mirror.liquidtelecom.com/osdn/storage/g/a/az/azul/

# Mirror 4:
Server = https://ftp.jaist.ac.jp/pub/sourceforge.jp/storage/g/a/az/azul/

# Mirror 5:
Server = http://ftp.halifax.rwth-aachen.de/osdn/storage/g/a/az/azul/

# Mirror 6:
Server = http://mirroronet.pl/pub/mirrors/sourceforge.jp/storage/g/a/az/azul/

# Mirror 7:
Server = https://ftp.acc.umu.se/mirror/osdn.net/storage/g/a/az/azul/

# Mirror 8:
Server = http://osdn.mirror.constant.com/storage/g/a/az/azul/

# Mirror 9:
Server = http://mirror.math.princeton.edu/pub/osdn/storage/g/a/az/azul/

# Mirror 10:
Server = https://mirrors.gigenet.com/OSDN/storage/g/a/az/azul/

# Mirror 11:
Server = https://openbsd.c3sl.ufpr.br/osdn/storage/g/a/az/azul/

# Mirror 12:
Server = http://osdn.ip-connect.vn.ua/storage/g/a/az/azul/

# Mirror 13:
Server = https://mirrors.dotsrc.org/osdn/storage/g/a/az/azul/

# Mirror 14:
Server = https://mirrors.bfsu.edu.cn/osdn/storage/g/a/az/azul/

# Mirror 15:
Server = https://plug-mirror.rcac.purdue.edu/osdn/storage/g/a/az/azul/

# Mirror 16:
Server = https://free.nchc.org.tw/osdn/storage/g/a/az/azul/

Ctrl+o to save the file, and Ctrl+x to exit.

Now, update the system:

sudo pacman -Syyu

And install:

sudo pacman -S azul-keyring azul-mirrors

Both are already installed, but this way, if there is any future update, it will be installed automatically.

The procedure is finished. To see the content of the repository, go here:

https://osdn.net/projects/azul/storage/