diff --git a/lib/weewx_proxy/application.ex b/lib/weewx_proxy/application.ex
index c351380..9c109af 100644
--- a/lib/weewx_proxy/application.ex
+++ b/lib/weewx_proxy/application.ex
@@ -8,7 +8,8 @@ defmodule WeewxProxy.Application do
     children = [
       WeewxProxy.Mqtt,
       WeewxProxy.Publisher,
-      WeewxProxy.Http
+      WeewxProxy.Http,
+      :systemd.ready()
     ]
 
     opts = [strategy: :one_for_one, name: WeewxProxy.Supervisor]
diff --git a/mix.exs b/mix.exs
index 2b1ce7b..8497584 100644
--- a/mix.exs
+++ b/mix.exs
@@ -27,6 +27,7 @@ defmodule WeewxProxy.MixProject do
       {:httpoison, "~> 2.1"},
       {:jason, "~> 1.4"},
       {:tz, "~> 0.26"},
+      {:systemd, "~> 0.6"},
       {:typed_struct, "~> 0.3.0", runtime: false},
       {:dialyxir, "~> 1.3", only: [:dev], runtime: false}
     ]
diff --git a/mix.lock b/mix.lock
index 0753768..73f8b50 100644
--- a/mix.lock
+++ b/mix.lock
@@ -4,6 +4,7 @@
   "cowboy_telemetry": {:hex, :cowboy_telemetry, "0.4.0", "f239f68b588efa7707abce16a84d0d2acf3a0f50571f8bb7f56a15865aae820c", [:rebar3], [{:cowboy, "~> 2.7", [hex: :cowboy, repo: "hexpm", optional: false]}, {:telemetry, "~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "7d98bac1ee4565d31b62d59f8823dfd8356a169e7fcbb83831b8a5397404c9de"},
   "cowlib": {:hex, :cowlib, "2.12.1", "a9fa9a625f1d2025fe6b462cb865881329b5caff8f1854d1cbc9f9533f00e1e1", [:make, :rebar3], [], "hexpm", "163b73f6367a7341b33c794c4e88e7dbfe6498ac42dcd69ef44c5bc5507c8db0"},
   "dialyxir": {:hex, :dialyxir, "1.3.0", "fd1672f0922b7648ff9ce7b1b26fcf0ef56dda964a459892ad15f6b4410b5284", [:mix], [{:erlex, ">= 0.2.6", [hex: :erlex, repo: "hexpm", optional: false]}], "hexpm", "00b2a4bcd6aa8db9dcb0b38c1225b7277dca9bc370b6438715667071a304696f"},
+  "enough": {:hex, :enough, "0.1.0", "0254710c52d324e2dadde54cb56fbb80a792c2eb285669b8379efd0752bf89f0", [:rebar3], [], "hexpm", "0460c7abda5f5e0ea592b12bc6976b8a5c4b96e42f332059cd396525374bf9a1"},
   "erlex": {:hex, :erlex, "0.2.6", "c7987d15e899c7a2f34f5420d2a2ea0d659682c06ac607572df55a43753aa12e", [:mix], [], "hexpm", "2ed2e25711feb44d52b17d2780eabf998452f6efda104877a3881c2f8c0c0c75"},
   "gen_state_machine": {:hex, :gen_state_machine, "3.0.0", "1e57f86a494e5c6b14137ebef26a7eb342b3b0070c7135f2d6768ed3f6b6cdff", [:mix], [], "hexpm", "0a59652574bebceb7309f6b749d2a41b45fdeda8dbb4da0791e355dd19f0ed15"},
   "hackney": {:hex, :hackney, "1.18.1", "f48bf88f521f2a229fc7bae88cf4f85adc9cd9bcf23b5dc8eb6a1788c662c4f6", [:rebar3], [{:certifi, "~>2.9.0", [hex: :certifi, repo: "hexpm", optional: false]}, {:idna, "~>6.1.0", [hex: :idna, repo: "hexpm", optional: false]}, {:metrics, "~>1.0.0", [hex: :metrics, repo: "hexpm", optional: false]}, {:mimerl, "~>1.1", [hex: :mimerl, repo: "hexpm", optional: false]}, {:parse_trans, "3.3.1", [hex: :parse_trans, repo: "hexpm", optional: false]}, {:ssl_verify_fun, "~>1.1.0", [hex: :ssl_verify_fun, repo: "hexpm", optional: false]}, {:unicode_util_compat, "~>0.7.0", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm", "a4ecdaff44297e9b5894ae499e9a070ea1888c84afdd1fd9b7b2bc384950128e"},
@@ -19,6 +20,7 @@
   "plug_crypto": {:hex, :plug_crypto, "1.2.5", "918772575e48e81e455818229bf719d4ab4181fcbf7f85b68a35620f78d89ced", [:mix], [], "hexpm", "26549a1d6345e2172eb1c233866756ae44a9609bd33ee6f99147ab3fd87fd842"},
   "ranch": {:hex, :ranch, "1.8.0", "8c7a100a139fd57f17327b6413e4167ac559fbc04ca7448e9be9057311597a1d", [:make, :rebar3], [], "hexpm", "49fbcfd3682fab1f5d109351b61257676da1a2fdbe295904176d5e521a2ddfe5"},
   "ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.6", "cf344f5692c82d2cd7554f5ec8fd961548d4fd09e7d22f5b62482e5aeaebd4b0", [:make, :mix, :rebar3], [], "hexpm", "bdb0d2471f453c88ff3908e7686f86f9be327d065cc1ec16fa4540197ea04680"},
+  "systemd": {:hex, :systemd, "0.6.2", "aaa24f1e3e6cb978c45369768b1abd766a0dbff637ed61254ca64797bcec9963", [:rebar3], [{:enough, "~>0.1.0", [hex: :enough, repo: "hexpm", optional: false]}], "hexpm", "5062b911800c1ab05157c7bf9a9fbe23dd24c58891c87fd12d2e3ed8fc1708b8"},
   "telemetry": {:hex, :telemetry, "1.2.1", "68fdfe8d8f05a8428483a97d7aab2f268aaff24b49e0f599faa091f1d4e7f61c", [:rebar3], [], "hexpm", "dad9ce9d8effc621708f99eac538ef1cbe05d6a874dd741de2e689c47feafed5"},
   "tortoise311": {:hex, :tortoise311, "0.11.5", "4d2850ea123987cfdd9ebdced510977cf37f6c392683d2ab862446fa14c171f3", [:mix], [{:gen_state_machine, "~> 2.0 or ~> 3.0", [hex: :gen_state_machine, repo: "hexpm", optional: false]}, {:telemetry, "~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "61279fcbdfd1b139020eb3644f94ebdfcdf27a538ee6ba992e4c8bc67b628ba5"},
   "typed_struct": {:hex, :typed_struct, "0.3.0", "939789e3c1dca39d7170c87f729127469d1315dcf99fee8e152bb774b17e7ff7", [:mix], [], "hexpm", "c50bd5c3a61fe4e198a8504f939be3d3c85903b382bde4865579bc23111d1b6d"},
diff --git a/mix.nix b/mix.nix
index 49abc1f..642391a 100644
--- a/mix.nix
+++ b/mix.nix
@@ -73,6 +73,19 @@ let
       beamDeps = [ erlex ];
     };
 
+    enough = buildRebar3 rec {
+      name = "enough";
+      version = "0.1.0";
+
+      src = fetchHex {
+        pkg = "${name}";
+        version = "${version}";
+        sha256 = "18gr9cvjar9rrmcj0crgwjb4np4adfbwcaxijajhwpjzvamwfq04";
+      };
+
+      beamDeps = [];
+    };
+
     erlex = buildMix rec {
       name = "erlex";
       version = "0.2.6";
@@ -268,6 +281,19 @@ let
       beamDeps = [];
     };
 
+    systemd = buildRebar3 rec {
+      name = "systemd";
+      version = "0.6.2";
+
+      src = fetchHex {
+        pkg = "${name}";
+        version = "${version}";
+        sha256 = "1f082zydhgif5p8pzj4ii32j9p93psgrmgy7ax8v06hch08vjqjh";
+      };
+
+      beamDeps = [ enough ];
+    };
+
     telemetry = buildRebar3 rec {
       name = "telemetry";
       version = "1.2.1";