diff --git a/src/main/constants/input.ts b/src/main/constants/input.ts
new file mode 100644
index 0000000..3bd6cfe
--- /dev/null
+++ b/src/main/constants/input.ts
@@ -0,0 +1,3 @@
+export const TRIGGER_THRESHOLD = 8
+export const DEDUP_WINDOW_MS = 40
+export const HOTPLUG_SCAN_INTERVAL_MS = 3_000
diff --git a/src/main/input/gamepadReader.ts b/src/main/input/gamepadReader.ts
index f205ba8..3deeecc 100644
--- a/src/main/input/gamepadReader.ts
+++ b/src/main/input/gamepadReader.ts
@@ -32,6 +32,7 @@
 import * as fs from 'node:fs'
 import * as path from 'node:path'
 import type { BrowserWindow } from 'electron'
+import { DEDUP_WINDOW_MS, HOTPLUG_SCAN_INTERVAL_MS, TRIGGER_THRESHOLD } from '../constants/input'
 
 // evdev input_event auf 64-bit Linux:
 // { u64 tv_sec (8 Bytes), u64 tv_usec (8 Bytes), u16 type (2), u16 code (2), s32 value (4) } = 24 Bytes
@@ -70,16 +71,10 @@ const BUTTON_MAP: Record<number, string> = {
 }
 
 const STICK_THRESHOLD = 16384  // ~50% von 32767
-// Trigger-Schwellwert: Achsenwert > 0 (nicht gedrückt) bis ~255–1023 je Controller
-const TRIGGER_THRESHOLD = 8
 const REPEAT_INITIAL_MS = 400
 const REPEAT_INTERVAL_MS = 150
 // Trigger-Achsen sollen kein Auto-Repeat auslösen (300s-Sprünge nicht wiederholen)
 const NO_REPEAT_ABS_CODES = new Set([ABS_Z, ABS_RZ])
-const SCAN_INTERVAL_MS = 3000
-// Bluetooth-/Steam-Setups können dieselbe Eingabe über mehrere Devices liefern.
-// Nahezu zeitgleiche identische Events werden global entdoppelt.
-const DUPLICATE_EVENT_WINDOW_MS = 40
 
 interface AxisState {
   key: string | null
@@ -367,7 +362,7 @@ export function startGamepadReader(getWindow: () => BrowserWindow | null): () =>
   const onKey = (key: string): void => {
     const now = Date.now()
     const lastAt = lastKeyAt.get(key) ?? 0
-    if (now - lastAt < DUPLICATE_EVENT_WINDOW_MS) return
+    if (now - lastAt < DEDUP_WINDOW_MS) return
     lastKeyAt.set(key, now)
 
     const win = getWindow()
@@ -427,7 +422,7 @@ export function startGamepadReader(getWindow: () => BrowserWindow | null): () =>
   }
 
   scanDevices()
-  const timer = setInterval(scanDevices, SCAN_INTERVAL_MS)
+  const timer = setInterval(scanDevices, HOTPLUG_SCAN_INTERVAL_MS)
 
   return () => {
     clearInterval(timer)
diff --git a/src/renderer/src/components/PlaybackOverlay.tsx b/src/renderer/src/components/PlaybackOverlay.tsx
index c085ce4..1dfb8d0 100644
--- a/src/renderer/src/components/PlaybackOverlay.tsx
+++ b/src/renderer/src/components/PlaybackOverlay.tsx
@@ -2,6 +2,7 @@ import { useCallback, useEffect, useRef, useState } from 'react'
 import { GamepadHintItem } from './GamepadPrompt'
 import { ClapperboardIcon, EyeIcon, GamepadIcon, PauseIcon, PlayIcon, QualityIcon, StopIcon } from './Icons'
 import { formatCount, formatTimestamp } from '../lib/formatting'
+import { DOUBLE_TAP_MS, OVERLAY_HIDE_DELAY_MS } from '../constants/playback'
 
 interface PlaybackOverlayProps {
   playState: 'playing' | 'paused'
@@ -30,9 +31,6 @@ interface PlaybackOverlayProps {
 }
 
 
-const HIDE_DELAY_MS = 5_000
-const DOUBLE_TAP_MS = 300
-
 export function PlaybackOverlay({
   playState,
   durationSeconds,
@@ -81,7 +79,7 @@ export function PlaybackOverlay({
 
   const scheduleHide = useCallback(() => {
     clearHideTimer()
-    hideTimerRef.current = setTimeout(() => setVisible(false), HIDE_DELAY_MS)
+    hideTimerRef.current = setTimeout(() => setVisible(false), OVERLAY_HIDE_DELAY_MS)
   }, [clearHideTimer])
 
   /** Call on any user interaction to show overlay and reset auto-hide timer. */
diff --git a/src/renderer/src/components/VideoPlayer.tsx b/src/renderer/src/components/VideoPlayer.tsx
index d2a4330..7f5d7d0 100644
--- a/src/renderer/src/components/VideoPlayer.tsx
+++ b/src/renderer/src/components/VideoPlayer.tsx
@@ -1,5 +1,6 @@
 import Hls from 'hls.js'
 import { forwardRef, useEffect, useImperativeHandle, useRef } from 'react'
+import { POSITION_REPORT_INTERVAL_MS } from '../constants/playback'
 
 export interface VideoPlayerHandle {
   seek(delta: number): void
@@ -24,8 +25,6 @@ interface Props {
   onTimeUpdate?: (seconds: number) => void
 }
 
-const POSITION_REPORT_INTERVAL_MS = 5_000
-
 export const VideoPlayer = forwardRef<VideoPlayerHandle, Props>(
   ({ hlsUrl, startPosition, isLive, vodId, durationSeconds, onPlaying, onPaused, onEnded, onError, onTimeUpdate }, ref) => {
     const videoRef = useRef<HTMLVideoElement>(null)
diff --git a/src/renderer/src/constants/input.ts b/src/renderer/src/constants/input.ts
new file mode 100644
index 0000000..f4b0976
--- /dev/null
+++ b/src/renderer/src/constants/input.ts
@@ -0,0 +1,3 @@
+export const AXIS_THRESHOLD = 0.5
+export const REPEAT_INITIAL_MS = 400
+export const REPEAT_INTERVAL_MS = 150
diff --git a/src/renderer/src/constants/playback.ts b/src/renderer/src/constants/playback.ts
new file mode 100644
index 0000000..f2b52a3
--- /dev/null
+++ b/src/renderer/src/constants/playback.ts
@@ -0,0 +1,3 @@
+export const OVERLAY_HIDE_DELAY_MS = 5_000
+export const DOUBLE_TAP_MS = 300
+export const POSITION_REPORT_INTERVAL_MS = 5_000
diff --git a/src/renderer/src/constants/ui.ts b/src/renderer/src/constants/ui.ts
new file mode 100644
index 0000000..bf18d26
--- /dev/null
+++ b/src/renderer/src/constants/ui.ts
@@ -0,0 +1,4 @@
+export const CARD_W = 260
+export const CARD_GAP = 16
+export const STREAM_W = 220
+export const STREAM_GAP = 14
diff --git a/src/renderer/src/input/gamepad.ts b/src/renderer/src/input/gamepad.ts
index 1e647d8..63e7872 100644
--- a/src/renderer/src/input/gamepad.ts
+++ b/src/renderer/src/input/gamepad.ts
@@ -20,6 +20,8 @@
  *   Axis  0 (left stick X) → Left/Right
  */
 
+import { AXIS_THRESHOLD, REPEAT_INITIAL_MS, REPEAT_INTERVAL_MS } from '../constants/input'
+
 const BUTTON_MAP: Record<number, string> = {
   0: 'Enter',   // A
   1: 'Escape',  // B
@@ -35,10 +37,6 @@ const BUTTON_MAP: Record<number, string> = {
   15: 'ArrowRight'
 }
 
-const AXIS_THRESHOLD = 0.5
-const REPEAT_INITIAL_MS = 400
-const REPEAT_INTERVAL_MS = 150
-
 interface AxisRepeat {
   key: string | null
   heldSince: number
diff --git a/src/renderer/src/screens/BrowseScreen.tsx b/src/renderer/src/screens/BrowseScreen.tsx
index 99c5541..cf147bc 100644
--- a/src/renderer/src/screens/BrowseScreen.tsx
+++ b/src/renderer/src/screens/BrowseScreen.tsx
@@ -3,6 +3,7 @@ import { GamepadHintItem } from '../components/GamepadPrompt'
 import LanguageBadge from '../components/LanguageBadge'
 import type { FollowedChannelInfo, GameInfo } from '../types/t4sd'
 import { formatViewers, formatViewersFull } from '../lib/formatting'
+import { STREAM_GAP, STREAM_W } from '../constants/ui'
 
 interface Props {
   hasFocus: boolean
@@ -15,8 +16,6 @@ interface Props {
 type LoadState = 'loading' | 'ok' | 'error'
 type FocusRegion = 'shelf' | 'grid'
 
-const STREAM_W = 220
-const STREAM_GAP = 14
 
 export default function BrowseScreen({
   hasFocus,
diff --git a/src/renderer/src/screens/ChannelScreen.tsx b/src/renderer/src/screens/ChannelScreen.tsx
index 4efd2c7..688c748 100644
--- a/src/renderer/src/screens/ChannelScreen.tsx
+++ b/src/renderer/src/screens/ChannelScreen.tsx
@@ -13,6 +13,7 @@ import {
   formatViewers,
   formatWatchedAt
 } from '../lib/formatting'
+import { CARD_GAP, CARD_W } from '../constants/ui'
 
 interface Props {
   channel: FollowedChannelInfo
@@ -21,9 +22,6 @@ interface Props {
 
 type FocusRegion = 'hero' | 'shelf' | 'chapters'
 
-const CARD_W = 260
-const CARD_GAP = 16
-
 function resolveThumbnail(url: string | undefined, w = 1280, h = 720): string | undefined {
   return url?.replace('{width}', String(w)).replace('{height}', String(h))
 }