this is the dhcp6c service we want

modules/dhcp6c/client.nix

@@ -0,0 +1,21 @@
+{
+  liminix
+, lib
+, odhcp6c
+, odhcp-script
+}:
+{ interface } :
+let
+  inherit (liminix.services) longrun;
+  inherit (lib) mkOption types;
+  name = "dhcp6c.${interface.name}";
+in longrun {
+  inherit name;
+  notification-fd = 10;
+  run = ''
+    export SERVICE_STATE=/run/service-state/${name}
+    ${odhcp6c}/bin/odhcp6c -s ${odhcp-script} -e -v -p /run/${name}.pid -P0 $(output ${interface} ifname)
+    )
+  '';
+  dependencies = [ interface ];
+}