diff --git a/config/config.exs b/config/config.exs
index 58c5e1d..0d8feb8 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -31,7 +31,7 @@ config :aprs, Aprs.Mailer, adapter: Swoosh.Adapters.Local
 
 # Configure esbuild (the version is required)
 config :esbuild,
-  version: "0.14.41",
+  version: "0.17.11",
   default: [
     args: ~w(js/app.js --bundle --target=es2017 --outdir=../priv/static/assets --external:/fonts/* --external:/images/*),
     cd: Path.expand("../assets", __DIR__),
@@ -40,7 +40,7 @@ config :esbuild,
 
 # Configure tailwind (the version is required)
 config :tailwind,
-  version: "3.1.8",
+  version: "3.3.2",
   default: [
     args: ~w(
       --config=tailwind.config.js
diff --git a/config/runtime.exs b/config/runtime.exs
index 9da49bd..401e843 100644
--- a/config/runtime.exs
+++ b/config/runtime.exs
@@ -28,7 +28,7 @@ if config_env() == :prod do
       For example: ecto://USER:PASS@HOST/DATABASE
       """
 
-  maybe_ipv6 = if System.get_env("ECTO_IPV6"), do: [:inet6], else: []
+  maybe_ipv6 = if System.get_env("ECTO_IPV6") in ~w(true 1), do: [:inet6], else: []
 
   config :aprs, Aprs.Repo,
     # ssl: true,
@@ -51,6 +51,8 @@ if config_env() == :prod do
   host = System.get_env("PHX_HOST") || "example.com"
   port = String.to_integer(System.get_env("PORT") || "4000")
 
+  config :aprs, :dns_cluster_query, System.get_env("DNS_CLUSTER_QUERY")
+
   config :aprs, AprsWeb.Endpoint,
     url: [host: host, port: 443, scheme: "https"],
     http: [
@@ -71,10 +73,6 @@ if config_env() == :prod do
     aprs_is_login_id: System.get_env("APRS_CALLSIGN"),
     aprs_is_password: System.get_env("APRS_PASSCODE")
 
-  # app_name =
-  #   System.get_env("FLY_APP_NAME") ||
-  #     raise "FLY_APP_NAME not available"
-
   app_name = "aprs"
 
   config :libcluster,