send kernel logs to s6

modules/klogd.nix

@@ -0,0 +1,15 @@
+{ config, lib, pkgs, ... }:
+let
+  inherit (pkgs.liminix.services) longrun;
+in {
+  config.services.klogd = longrun {
+    name = "klogd";
+    run = ''
+      echo "1 2 1 8"  > /proc/sys/kernel/printk
+      cat /proc/kmsg
+    '';
+    finish = ''
+      echo "8 4 1 8"  > /proc/sys/kernel/printk
+    '';
+  };
+}