Disable fsync in containers and kill it with sigkill as steam doesn't trap sigterm

localhost/caskd/archlinux/steam/runner.sh

@@ -2,12 +2,14 @@
 podman create \
 	--replace \
 	--name steam \
+	--stop-signal=SIGKILL \
 	--read-only \
 	--network=host \
-	--userns=keep-id:uid=10000 \
 	--shm-size=8g \
+	--userns=keep-id:uid=10000 \
 	--restart=on-failure:5 \
 	-e DISPLAY="$DISPLAY" \
+	-e PROTON_NO_FSYNC=1 \
 	-v '/sys:/sys' \
 	-v '/dev:/dev' \
 	-v '/run/pulse:/run/pulse' \