{ config, pkgs, lib, ... }: { containers.snowflake = { autoStart = true; ephemeral = true; config = { systemd.services.snowflake = { wantedBy = [ "multi-user.target" ]; serviceConfig = { IPAccounting = "yes"; ExecStart = "${pkgs.snowflake}/bin/proxy"; DynamicUser = "yes"; # Read-only filesystem ProtectSystem = "strict"; PrivateDevices = "yes"; ProtectKernelTunables = "yes"; ProtectControlGroups = "yes"; ProtectHome = "yes"; # Deny access to as many things as possible NoNewPrivileges = "yes"; PrivateUsers = "yes"; LockPersonality = "yes"; MemoryDenyWriteExecute = "yes"; ProtectClock = "yes"; ProtectHostname = "yes"; ProtectKernelLogs = "yes"; ProtectKernelModules = "yes"; RestrictNamespaces = "yes"; RestrictRealtime = "yes"; RestrictSUIDSGID = "yes"; SystemCallArchitectures = "native"; SystemCallFilter = "~@chown @clock @cpu-emulation @debug @module @mount @obsolete @raw-io @reboot @setuid @swap @privileged @resources"; CapabilityBoundingSet = ""; ProtectProc = "invisible"; ProcSubset = "pid"; }; }; }; }; }