diff --git a/src/app.d.ts b/src/app.d.ts
index f59b884..465f22f 100644
--- a/src/app.d.ts
+++ b/src/app.d.ts
@@ -1,5 +1,12 @@
 // See https://kit.svelte.dev/docs/types#app
 // for information about these interfaces
+
+declare module './lib/types' {
+	interface EpisodeDetails {
+		title: string;
+	}
+}
+
 declare global {
 	namespace App {
 		// interface Error {}
diff --git a/src/lib/audio/episode-data.ts b/src/lib/audio/episode-data.ts
index 12ac468..99c50fd 100644
--- a/src/lib/audio/episode-data.ts
+++ b/src/lib/audio/episode-data.ts
@@ -1,23 +1,12 @@
 import { audio_element, type AudioElementStore } from '$lib/audio/audio-element';
-import {
-	episode_details,
-	type EpisodeDetails,
-	type EpisodeDetailsStore,
-} from '$lib/audio/episode-details';
+import { episode_details, type EpisodeDetailsStore } from '$lib/audio/episode-details';
 import { podcast_preferences } from '$lib/preferences';
 import { podcast_progress } from '$lib/progress';
+import type { EpisodeAttributes, EpisodeDetails } from '$lib/types';
 import { warn } from '$lib/utility/package/log';
 import clamp from 'just-clamp';
 import { derived, get } from 'svelte/store';
 
-type EpisodeAttributes = {
-	will_autoplay: boolean;
-	is_muted: boolean;
-	duration: number;
-	src: string;
-	start_at: number;
-	details: EpisodeDetails;
-};
 const default_episode_attributes = {
 	will_autoplay: false,
 	is_muted: false,
diff --git a/src/lib/audio/episode-details.ts b/src/lib/audio/episode-details.ts
index 39951fe..551be6f 100644
--- a/src/lib/audio/episode-details.ts
+++ b/src/lib/audio/episode-details.ts
@@ -1,5 +1,5 @@
+import type { EpisodeDetails } from '$lib/types';
 import { writable } from 'svelte/store';
 
-export type EpisodeDetails = Record<string, string | number | boolean> | null;
-export const episode_details = writable<EpisodeDetails>(null);
+export const episode_details = writable<EpisodeDetails | null>(null);
 export type EpisodeDetailsStore = typeof episode_details;
diff --git a/src/lib/audio/episode-progress.ts b/src/lib/audio/episode-progress.ts
index 9f97377..d279206 100644
--- a/src/lib/audio/episode-progress.ts
+++ b/src/lib/audio/episode-progress.ts
@@ -1,9 +1,8 @@
 import { audio_element, type AudioElementStore } from '$lib/audio/audio-element';
+import type { EpisodeProgress } from '$lib/types';
 import { secondsToTimestamp } from '$lib/utility';
 import { derived } from 'svelte/store';
 
-type EpisodeProgress = { current_time: number; timestamp: string; has_ended: boolean };
-
 const default_episode_progress = {
 	current_time: 0,
 	timestamp: '00:00',
diff --git a/src/lib/types.ts b/src/lib/types.ts
index 6cf569b..be88021 100644
--- a/src/lib/types.ts
+++ b/src/lib/types.ts
@@ -1,18 +1,22 @@
-export type AudioPlayerElement = HTMLAudioElement | undefined;
-
-export interface AudioMetadata {
-	title?: string;
-	artwork?: string;
+export interface EpisodeDetails {
+	[key: string]: string | number | boolean;
 }
 
-export interface AudioLoadData extends AudioMetadata {
+export type EpisodeProgress = { current_time: number; timestamp: string; has_ended: boolean };
+
+export type EpisodeAttributes = {
+	will_autoplay: boolean;
+	is_muted: boolean;
+	duration: number;
 	src: string;
-}
+	start_at: number;
+	details: EpisodeDetails | null;
+};
 
-export interface AudioLoadOptions {
+export type AudioLoadOptions = {
 	autoplay: boolean;
 	start_at?: number;
-}
+};
 
 export interface UserPreferences {
 	playback_rate: number;