diff --git a/README.md b/README.md
index 4be0952..8a05aff 100644
--- a/README.md
+++ b/README.md
@@ -63,8 +63,8 @@ Farside's routing is very minimal, with only the following routes:
     particular service with the specified path
   - Ex: `/libreddit/r/popular` would navigate to `<libreddit instance
     URL>/r/popular`
-    - If the service provided is actually a URL to a "parent" service 
-      (i.e. "youtube.com" instead of "piped" or "invidious"), Farside 
+    - If the service provided is actually a URL to a "parent" service
+      (i.e. "youtube.com" instead of "piped" or "invidious"), Farside
       will determine the correct frontend to use for the specified URL.
   - Note that a path is not required. `/libreddit` for example will still
     redirect the user to a working libreddit instance
@@ -108,3 +108,6 @@ request per second per IP.
 | Name | Purpose |
 | -- | -- |
 | FARSIDE_TEST | If enabled, bypasses the instance availability check and adds all instances to the pool. |
+| FARSIDE_PORT | The port to run Farside on (default: `4001`) |
+| FARSIDE_REDIS_PORT | The Redis server port to use (default: `6379`, same as the default for Redis) |
+| FARSIDE_SERVICES_JSON | The "services" JSON file to use for selecting instances (default: `services.json`) |
diff --git a/config/config.exs b/config/config.exs
index d1ec18d..11f61d9 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -1,13 +1,10 @@
 import Config
 
 config :farside,
-  port: 4001,
-  redis_conn: "redis://localhost:6379",
   update_file: ".update-results",
   service_prefix: "service-",
   fallback_suffix: "-fallback",
   previous_suffix: "-previous",
-  services_json: "services.json",
   index: "index.eex",
   route: "route.eex",
   headers: [
diff --git a/config/runtime.exs b/config/runtime.exs
new file mode 100644
index 0000000..e4491ff
--- /dev/null
+++ b/config/runtime.exs
@@ -0,0 +1,6 @@
+import Config
+
+config :farside,
+  port: System.get_env("FARSIDE_PORT", "4001"),
+  redis_conn: "redis://localhost:#{System.get_env("FARSIDE_REDIS_PORT", "6379")}",
+  services_json: System.get_env("FARSIDE_SERVICES_JSON", "services.json")
diff --git a/lib/farside/application.ex b/lib/farside/application.ex
index 9fd6e9d..0ab77ea 100644
--- a/lib/farside/application.ex
+++ b/lib/farside/application.ex
@@ -1,22 +1,27 @@
 defmodule Farside.Application do
-  @farside_port Application.fetch_env!(:farside, :port)
-  @redis_conn Application.fetch_env!(:farside, :redis_conn)
+  #@farside_port Application.fetch_env!(:farside, :port)
+  #@redis_conn Application.fetch_env!(:farside, :redis_conn)
   @moduledoc false
 
   use Application
 
   @impl true
   def start(_type, _args) do
+    redis_conn = Application.fetch_env!(:farside, :redis_conn)
+    farside_port = Application.fetch_env!(:farside, :port)
+    IO.puts "Runing on http://localhost:#{farside_port}"
+    IO.puts "Redis conn: #{redis_conn}"
+
     children = [
       Plug.Cowboy.child_spec(
         scheme: :http,
         plug: Farside.Router,
         options: [
-          port: @farside_port
+          port: String.to_integer(farside_port)
         ]
       ),
       {PlugAttack.Storage.Ets, name: Farside.Throttle.Storage, clean_period: 60_000},
-      {Redix, {@redis_conn, [name: :redix]}},
+      {Redix, {redis_conn, [name: :redix]}},
       Farside.Scheduler,
       Farside.Server
     ]
diff --git a/lib/farside/instances.ex b/lib/farside/instances.ex
index 625bbb4..f37f306 100644
--- a/lib/farside/instances.ex
+++ b/lib/farside/instances.ex
@@ -1,7 +1,6 @@
 defmodule Farside.Instances do
   @fallback_suffix Application.fetch_env!(:farside, :fallback_suffix)
   @update_file Application.fetch_env!(:farside, :update_file)
-  @services_json Application.fetch_env!(:farside, :services_json)
   @service_prefix Application.fetch_env!(:farside, :service_prefix)
   @headers Application.fetch_env!(:farside, :headers)
   @queries Application.fetch_env!(:farside, :queries)
@@ -42,7 +41,8 @@ defmodule Farside.Instances do
   end
 
   def update() do
-    {:ok, file} = File.read(@services_json)
+    services_json = Application.fetch_env!(:farside, :services_json)
+    {:ok, file} = File.read(services_json)
     {:ok, json} = Jason.decode(file)
 
     # Loop through all instances and check each for availability
diff --git a/test/farside_test.exs b/test/farside_test.exs
index 25828c6..d47396e 100644
--- a/test/farside_test.exs
+++ b/test/farside_test.exs
@@ -1,5 +1,4 @@
 defmodule FarsideTest do
-  @services_json Application.fetch_env!(:farside, :services_json)
 
   use ExUnit.Case
   use Plug.Test
@@ -49,7 +48,8 @@ defmodule FarsideTest do
   end
 
   test "/:service" do
-    {:ok, file} = File.read(@services_json)
+    services_json = Application.fetch_env!(:farside, :services_json)
+    {:ok, file} = File.read(services_json)
     {:ok, service_list} = Jason.decode(file)
 
     service_names =