
<code bash>
cd /tmp/
apt install wget ca-certificates git libolm3 libolm-dev build-essential

wget https://go.dev/dl/go1.17.3.linux-amd64.tar.gz
rm -rf /usr/local/go && tar -C /usr/local -xzf go1.17.3.linux-amd64.tar.gz
export PATH=$PATH:/usr/local/go/bin

git clone https://github.com/mautrix/whatsapp.git
cd whatsapp/
./build.sh 

useradd mautrix-whatsapp -r -s /bin/false -m -d /usr/lib/mautrix-whatsapp
cp mautrix-whatsapp /usr/lib/mautrix-whatsapp/

mkdir /etc/mautrix-whatsapp/
mv ~/config.yaml /etc/mautrix-whatsapp/

nano /etc/systemd/system/mautrix-whatsapp.service
systemctl start mautrix-whatsapp
systemctl enable mautrix-whatsapp
</code>

<file bash /etc/systemd/system/mautrix-whatsapp.service>
[Unit]
Description=mautrix-whatsapp bridge

[Service]
Type=exec
User=mautrix-whatsapp
WorkingDirectory=/usr/lib/mautrix-whatsapp
ExecStart=/usr/lib/mautrix-whatsapp/mautrix-whatsapp -c /etc/mautrix-whatsapp/config.yaml
Restart=on-failure
RestartSec=30s

# Optional hardening to improve security
ReadWritePaths=/usr/lib/mautrix-whatsapp /etc/mautrix-whatsapp
NoNewPrivileges=yes
MemoryDenyWriteExecute=true
PrivateDevices=yes
PrivateTmp=yes
ProtectHome=yes
ProtectSystem=strict
ProtectControlGroups=true
RestrictSUIDSGID=true
RestrictRealtime=true
LockPersonality=true
ProtectKernelLogs=true
ProtectKernelTunables=true
ProtectHostname=true
ProtectKernelModules=true
PrivateUsers=true
ProtectClock=true
SystemCallArchitectures=native
SystemCallErrorNumber=EPERM
SystemCallFilter=@system-service

[Install]
WantedBy=multi-user.target
</file>