diff --git a/src/lib/constants.js b/src/lib/constants.js
index a540a99..85242e0 100644
--- a/src/lib/constants.js
+++ b/src/lib/constants.js
@@ -6,8 +6,15 @@
 
 let constants = {
 	// Things that server owners _should_ change!
-	website_origin: "http://localhost:10407", // Protocol and domain that this instance is hosted on. Do NOT include a trailing slash.
-	has_privacy_policy: false, // You MUST read /src/site/pug/privacy.pug.template before changing this!
+	// Protocol and domain that the website can be accessed on. Images and links in RSS feeds start with this URL.
+	// Do NOT include a trailing slash. If you leave this as localhost, Bibliogram will not work correctly when accessed from any other device.
+	// If you are using nginx to make Bibliogram accessible on port 80/443, do NOT write a port here.
+	// For example, "https://bibliogram.art"
+	website_origin: "http://localhost:10407",
+	// Port to actually run the webserver on.
+	port: 10407,
+	// You MUST read /src/site/pug/privacy.pug.template before changing has_privacy_policy!
+	has_privacy_policy: false,
 
 	// Things that server owners _could_ change if they want to.
 	tor: {
diff --git a/src/site/server.js b/src/site/server.js
index e326e78..394b4c2 100644
--- a/src/site/server.js
+++ b/src/site/server.js
@@ -5,7 +5,7 @@ const constants = require("../lib/constants")
 const passthrough = require("./passthrough")
 
 const pinski = new Pinski({
-	port: 10407,
+	port: constants.port,
 	relativeRoot: __dirname,
 	basicCacheControl: {
 		exts: ["ttf", "woff2", "png", "jpg", "jpeg", "svg", "gif", "webmanifest", "ico"],