[Unit]
Description=Tuwunel Matrix homeserver
Wants=network-online.target
After=network-online.target
Documentation=https://tuwunel.chat/

[Service]
User=tuwunel
Group=tuwunel
Type=notify

Environment="TUWUNEL_CONFIG=/etc/tuwunel/tuwunel.toml"

ExecStart=/usr/sbin/tuwunel

ReadWritePaths=/var/lib/tuwunel /etc/tuwunel

AmbientCapabilities=
CapabilityBoundingSet=

ManagedOOMPreference=avoid

DevicePolicy=closed
LockPersonality=yes
MemoryDenyWriteExecute=yes
NoNewPrivileges=yes
#ProcSubset=pid
ProtectClock=yes
ProtectControlGroups=yes
ProtectHome=yes
ProtectHostname=yes
ProtectKernelLogs=yes
ProtectKernelModules=yes
ProtectKernelTunables=yes
ProtectProc=invisible
ProtectSystem=strict
PrivateDevices=yes
PrivateMounts=yes
PrivateTmp=yes
PrivateUsers=yes
PrivateIPC=yes
RemoveIPC=yes
RestrictAddressFamilies=AF_INET AF_INET6 AF_UNIX
RestrictNamespaces=yes
RestrictRealtime=yes
RestrictSUIDSGID=yes
SystemCallArchitectures=native
SystemCallFilter=@system-service @resources
SystemCallFilter=~@clock @debug @module @mount @reboot @swap @cpu-emulation @obsolete @timer @chown @setuid @privileged @keyring @ipc
SystemCallErrorNumber=EPERM

RuntimeDirectory=tuwunel
RuntimeDirectoryMode=0750

Restart=on-failure
RestartSec=5

TimeoutStopSec=2m
TimeoutStartSec=2m

StartLimitInterval=1m
StartLimitBurst=5

[Install]
WantedBy=multi-user.target
Alias=matrix-tuwunel.service