diff --git a/src/apps/experimental/features/preferences/components/DisplayPreferences.tsx b/src/apps/experimental/features/preferences/components/DisplayPreferences.tsx
index 6977459c6b..e5e940b7aa 100644
--- a/src/apps/experimental/features/preferences/components/DisplayPreferences.tsx
+++ b/src/apps/experimental/features/preferences/components/DisplayPreferences.tsx
@@ -11,6 +11,7 @@ import Typography from '@mui/material/Typography';
 import React, { Fragment } from 'react';
 
 import { appHost } from 'components/apphost';
+import { AppFeature } from 'constants/appFeature';
 import { useApi } from 'hooks/useApi';
 import { useThemes } from 'hooks/useThemes';
 import globalize from 'lib/globalize';
@@ -32,7 +33,7 @@ export function DisplayPreferences({ onChange, values }: Readonly<DisplayPrefere
         <Stack spacing={3}>
             <Typography variant='h2'>{globalize.translate('Display')}</Typography>
 
-            { appHost.supports('displaymode') && (
+            { appHost.supports(AppFeature.DisplayMode) && (
                 <FormControl fullWidth>
                     <InputLabel id='display-settings-layout-label'>{globalize.translate('LabelDisplayMode')}</InputLabel>
                     <Select
@@ -124,7 +125,7 @@ export function DisplayPreferences({ onChange, values }: Readonly<DisplayPrefere
                 </FormControl>
             ) }
 
-            { screensavers.length > 0 && appHost.supports('screensaver') && (
+            { screensavers.length > 0 && appHost.supports(AppFeature.Screensaver) && (
                 <Fragment>
                     <FormControl fullWidth>
                         <InputLabel id='display-settings-screensaver-label'>{globalize.translate('LabelScreensaver')}</InputLabel>
diff --git a/src/apps/experimental/features/preferences/components/LocalizationPreferences.tsx b/src/apps/experimental/features/preferences/components/LocalizationPreferences.tsx
index 4e36a08033..d05ac0b2b2 100644
--- a/src/apps/experimental/features/preferences/components/LocalizationPreferences.tsx
+++ b/src/apps/experimental/features/preferences/components/LocalizationPreferences.tsx
@@ -10,8 +10,9 @@ import React from 'react';
 
 import { DATE_LOCALE_OPTIONS, LANGUAGE_OPTIONS } from 'apps/experimental/features/preferences/constants/locales';
 import { appHost } from 'components/apphost';
-import datetime from 'scripts/datetime';
+import { AppFeature } from 'constants/appFeature';
 import globalize from 'lib/globalize';
+import datetime from 'scripts/datetime';
 
 import type { DisplaySettingsValues } from '../types/displaySettingsValues';
 
@@ -21,14 +22,14 @@ interface LocalizationPreferencesProps {
 }
 
 export function LocalizationPreferences({ onChange, values }: Readonly<LocalizationPreferencesProps>) {
-    if (!appHost.supports('displaylanguage') && !datetime.supportsLocalization()) {
+    if (!appHost.supports(AppFeature.DisplayLanguage) && !datetime.supportsLocalization()) {
         return null;
     }
     return (
         <Stack spacing={3}>
             <Typography variant='h2'>{globalize.translate('Localization')}</Typography>
 
-            { appHost.supports('displaylanguage') && (
+            { appHost.supports(AppFeature.DisplayLanguage) && (
                 <FormControl fullWidth>
                     <InputLabel id='display-settings-language-label'>{globalize.translate('LabelDisplayLanguage')}</InputLabel>
                     <Select
@@ -46,7 +47,7 @@ export function LocalizationPreferences({ onChange, values }: Readonly<Localizat
                     </Select>
                     <FormHelperText component={Stack} id='display-settings-language-description'>
                         <span>{globalize.translate('LabelDisplayLanguageHelp')}</span>
-                        { appHost.supports('externallinks') && (
+                        { appHost.supports(AppFeature.ExternalLinks) && (
                             <Link
                                 href='https://github.com/jellyfin/jellyfin'
                                 rel='noopener noreferrer'
diff --git a/src/apps/experimental/features/preferences/hooks/useDisplaySettings.ts b/src/apps/experimental/features/preferences/hooks/useDisplaySettings.ts
index 09e52b2686..c6a544fb6c 100644
--- a/src/apps/experimental/features/preferences/hooks/useDisplaySettings.ts
+++ b/src/apps/experimental/features/preferences/hooks/useDisplaySettings.ts
@@ -4,6 +4,7 @@ import { useCallback, useEffect, useState } from 'react';
 
 import { appHost } from 'components/apphost';
 import layoutManager from 'components/layoutManager';
+import { AppFeature } from 'constants/appFeature';
 import { useApi } from 'hooks/useApi';
 import themeManager from 'scripts/themeManager';
 import { currentSettings, UserSettings } from 'scripts/settings/userSettings';
@@ -120,7 +121,7 @@ async function saveDisplaySettings({
 }: SaveDisplaySettingsParams) {
     const user = await api.getUser(userId);
 
-    if (appHost.supports('displaylanguage')) {
+    if (appHost.supports(AppFeature.DisplayLanguage)) {
         userSettings.language(normalizeValue(newDisplaySettings.language));
     }
     userSettings.customCss(normalizeValue(newDisplaySettings.customCss));
diff --git a/src/apps/stable/routes/user/settings/index.tsx b/src/apps/stable/routes/user/settings/index.tsx
index 8f8f2ad2ea..26145aa6f6 100644
--- a/src/apps/stable/routes/user/settings/index.tsx
+++ b/src/apps/stable/routes/user/settings/index.tsx
@@ -6,6 +6,7 @@ import { appHost } from 'components/apphost';
 import layoutManager from 'components/layoutManager';
 import Loading from 'components/loading/LoadingComponent';
 import Page from 'components/Page';
+import { AppFeature } from 'constants/appFeature';
 import LinkButton from 'elements/emby-button/LinkButton';
 import { useApi } from 'hooks/useApi';
 import { useQuickConnectEnabled } from 'hooks/useQuickConnect';
@@ -185,7 +186,7 @@ const UserSettingsPage: FC = () => {
                             </div>
                         </LinkButton>
 
-                        {appHost.supports('clientsettings') && (
+                        {appHost.supports(AppFeature.ClientSettings) && (
                             <LinkButton
                                 onClick={shell.openClientSettings}
                                 className='clientSettings listItem-border'
@@ -290,7 +291,7 @@ const UserSettingsPage: FC = () => {
                                 {globalize.translate('HeaderUser')}
                             </h2>
 
-                            {appHost.supports('multiserver') && (
+                            {appHost.supports(AppFeature.MultiServer) && (
                                 <LinkButton
                                     onClick={Dashboard.selectServer}
                                     className='selectServer listItem-border'
@@ -330,7 +331,7 @@ const UserSettingsPage: FC = () => {
                                 </div>
                             </LinkButton>
 
-                            {appHost.supports('exitmenu') && (
+                            {appHost.supports(AppFeature.ExitMenu) && (
                                 <LinkButton
                                     onClick={appHost.exit}
                                     className='exitApp listItem-border'
diff --git a/src/apps/stable/routes/user/userprofile.tsx b/src/apps/stable/routes/user/userprofile.tsx
index 51ca84c402..bc08fe4b09 100644
--- a/src/apps/stable/routes/user/userprofile.tsx
+++ b/src/apps/stable/routes/user/userprofile.tsx
@@ -12,6 +12,7 @@ import UserPasswordForm from '../../../../components/dashboard/users/UserPasswor
 import loading from '../../../../components/loading/loading';
 import toast from '../../../../components/toast/toast';
 import Page from '../../../../components/Page';
+import { AppFeature } from 'constants/appFeature';
 
 const UserProfile: FunctionComponent = () => {
     const [ searchParams ] = useSearchParams();
@@ -61,7 +62,7 @@ const UserProfile: FunctionComponent = () => {
                 if (user.PrimaryImageTag) {
                     (page.querySelector('#btnAddImage') as HTMLButtonElement).classList.add('hide');
                     (page.querySelector('#btnDeleteImage') as HTMLButtonElement).classList.remove('hide');
-                } else if (appHost.supports('fileinput') && (loggedInUser?.Policy?.IsAdministrator || user.Policy.EnableUserPreferenceAccess)) {
+                } else if (appHost.supports(AppFeature.FileInput) && (loggedInUser?.Policy?.IsAdministrator || user.Policy.EnableUserPreferenceAccess)) {
                     (page.querySelector('#btnDeleteImage') as HTMLButtonElement).classList.add('hide');
                     (page.querySelector('#btnAddImage') as HTMLButtonElement).classList.remove('hide');
                 }
diff --git a/src/components/ConnectionErrorPage.tsx b/src/components/ConnectionErrorPage.tsx
index 3dae182b70..3dd69494bd 100644
--- a/src/components/ConnectionErrorPage.tsx
+++ b/src/components/ConnectionErrorPage.tsx
@@ -2,6 +2,7 @@ import React, { FC, useEffect, useState } from 'react';
 
 import { appHost } from 'components/apphost';
 import Page from 'components/Page';
+import { AppFeature } from 'constants/appFeature';
 import LinkButton from 'elements/emby-button/LinkButton';
 import globalize from 'lib/globalize';
 import { ConnectionState } from 'lib/jellyfin-apiclient';
@@ -50,7 +51,7 @@ const ConnectionErrorPage: FC<ConnectionErrorPageProps> = ({
                 {message && (
                     <p>{message}</p>
                 )}
-                {appHost.supports('multiserver') && (
+                {appHost.supports(AppFeature.MultiServer) && (
                     <LinkButton
                         className='raised'
                         href='/selectserver'
diff --git a/src/components/apphost.js b/src/components/apphost.js
index 7d49088564..addc352c15 100644
--- a/src/components/apphost.js
+++ b/src/components/apphost.js
@@ -5,6 +5,7 @@ import * as htmlMediaHelper from '../components/htmlMediaHelper';
 import * as webSettings from '../scripts/settings/webSettings';
 import globalize from '../lib/globalize';
 import profileBuilder from '../scripts/browserDeviceProfile';
+import { AppFeature } from 'constants/appFeature';
 
 const appName = 'Jellyfin Web';
 
@@ -169,14 +170,6 @@ function getDeviceName() {
     return deviceName;
 }
 
-function supportsVoiceInput() {
-    if (!browser.tv) {
-        return window.SpeechRecognition || window.webkitSpeechRecognition || window.mozSpeechRecognition || window.oSpeechRecognition || window.msSpeechRecognition;
-    }
-
-    return false;
-}
-
 function supportsFullscreen() {
     if (browser.tv) {
         return false;
@@ -235,77 +228,65 @@ const supportedFeatures = function () {
     const features = [];
 
     if (navigator.share) {
-        features.push('sharing');
+        features.push(AppFeature.Sharing);
     }
 
     if (!browser.edgeUwp && !browser.tv && !browser.xboxOne && !browser.ps4) {
-        features.push('filedownload');
+        features.push(AppFeature.FileDownload);
     }
 
     if (browser.operaTv || browser.tizen || browser.orsay || browser.web0s) {
-        features.push('exit');
-    } else {
-        features.push('plugins');
+        features.push(AppFeature.Exit);
     }
 
     if (!browser.operaTv && !browser.tizen && !browser.orsay && !browser.web0s && !browser.ps4) {
-        features.push('externallinks');
-        features.push('externalpremium');
-    }
-
-    if (!browser.operaTv) {
-        features.push('externallinkdisplay');
-    }
-
-    if (supportsVoiceInput()) {
-        features.push('voiceinput');
+        features.push(AppFeature.ExternalLinks);
     }
 
     if (supportsHtmlMediaAutoplay()) {
-        features.push('htmlaudioautoplay');
-        features.push('htmlvideoautoplay');
+        features.push(AppFeature.HtmlAudioAutoplay);
+        features.push(AppFeature.HtmlVideoAutoplay);
     }
 
     if (supportsFullscreen()) {
-        features.push('fullscreenchange');
+        features.push(AppFeature.Fullscreen);
     }
 
     if (browser.tv || browser.xboxOne || browser.ps4 || browser.mobile || browser.ipad) {
-        features.push('physicalvolumecontrol');
+        features.push(AppFeature.PhysicalVolumeControl);
     }
 
     if (!browser.tv && !browser.xboxOne && !browser.ps4) {
-        features.push('remotecontrol');
+        features.push(AppFeature.RemoteControl);
     }
 
     if (!browser.operaTv && !browser.tizen && !browser.orsay && !browser.web0s && !browser.edgeUwp) {
-        features.push('remotevideo');
+        features.push(AppFeature.RemoteVideo);
     }
 
-    features.push('displaylanguage');
-    features.push('otherapppromotions');
-    features.push('displaymode');
-    features.push('targetblank');
-    features.push('screensaver');
+    features.push(AppFeature.DisplayLanguage);
+    features.push(AppFeature.DisplayMode);
+    features.push(AppFeature.TargetBlank);
+    features.push(AppFeature.Screensaver);
 
     webSettings.getMultiServer().then(enabled => {
-        if (enabled) features.push('multiserver');
+        if (enabled) features.push(AppFeature.MultiServer);
     });
 
     if (!browser.orsay && (browser.firefox || browser.ps4 || browser.edge || supportsCue())) {
-        features.push('subtitleappearancesettings');
+        features.push(AppFeature.SubtitleAppearance);
     }
 
     if (!browser.orsay) {
-        features.push('subtitleburnsettings');
+        features.push(AppFeature.SubtitleBurnIn);
     }
 
     if (!browser.tv && !browser.ps4 && !browser.xboxOne) {
-        features.push('fileinput');
+        features.push(AppFeature.FileInput);
     }
 
     if (browser.chrome || browser.edgeChromium) {
-        features.push('chromecast');
+        features.push(AppFeature.Chromecast);
     }
 
     return features;
diff --git a/src/components/displaySettings/displaySettings.js b/src/components/displaySettings/displaySettings.js
index 21eef9f286..7ca0e11b6d 100644
--- a/src/components/displaySettings/displaySettings.js
+++ b/src/components/displaySettings/displaySettings.js
@@ -1,4 +1,6 @@
 import escapeHtml from 'escape-html';
+
+import { AppFeature } from 'constants/appFeature';
 import browser from '../../scripts/browser';
 import layoutManager from '../layoutManager';
 import { pluginManager } from '../pluginManager';
@@ -68,19 +70,19 @@ function showOrHideMissingEpisodesField(context) {
 }
 
 function loadForm(context, user, userSettings) {
-    if (appHost.supports('displaylanguage')) {
+    if (appHost.supports(AppFeature.DisplayLanguage)) {
         context.querySelector('.languageSection').classList.remove('hide');
     } else {
         context.querySelector('.languageSection').classList.add('hide');
     }
 
-    if (appHost.supports('displaymode')) {
+    if (appHost.supports(AppFeature.DisplayMode)) {
         context.querySelector('.fldDisplayMode').classList.remove('hide');
     } else {
         context.querySelector('.fldDisplayMode').classList.add('hide');
     }
 
-    if (appHost.supports('externallinks')) {
+    if (appHost.supports(AppFeature.ExternalLinks)) {
         context.querySelector('.learnHowToContributeContainer').classList.remove('hide');
     } else {
         context.querySelector('.learnHowToContributeContainer').classList.add('hide');
@@ -88,7 +90,7 @@ function loadForm(context, user, userSettings) {
 
     context.querySelector('.selectDashboardThemeContainer').classList.toggle('hide', !user.Policy.IsAdministrator);
 
-    if (appHost.supports('screensaver')) {
+    if (appHost.supports(AppFeature.Screensaver)) {
         context.querySelector('.selectScreensaverContainer').classList.remove('hide');
         context.querySelector('.txtBackdropScreensaverIntervalContainer').classList.remove('hide');
         context.querySelector('.txtScreensaverTimeContainer').classList.remove('hide');
@@ -143,7 +145,7 @@ function loadForm(context, user, userSettings) {
 function saveUser(context, user, userSettingsInstance, apiClient) {
     user.Configuration.DisplayMissingEpisodes = context.querySelector('.chkDisplayMissingEpisodes').checked;
 
-    if (appHost.supports('displaylanguage')) {
+    if (appHost.supports(AppFeature.DisplayLanguage)) {
         userSettingsInstance.language(context.querySelector('#selectLanguage').value);
     }
 
diff --git a/src/components/imageDownloader/imageDownloader.js b/src/components/imageDownloader/imageDownloader.js
index b4ddaf85da..77d9f17068 100644
--- a/src/components/imageDownloader/imageDownloader.js
+++ b/src/components/imageDownloader/imageDownloader.js
@@ -1,3 +1,4 @@
+import { AppFeature } from 'constants/appFeature';
 import dom from '../../scripts/dom';
 import loading from '../loading/loading';
 import { appHost } from '../apphost';
@@ -205,7 +206,7 @@ function getRemoteImageHtml(image, imageType) {
     html += '<div class="cardPadder-' + shape + '"></div>';
     html += '<div class="cardContent">';
 
-    if (layoutManager.tv || !appHost.supports('externallinks')) {
+    if (layoutManager.tv || !appHost.supports(AppFeature.ExternalLinks)) {
         html += '<div class="cardImageContainer lazy" data-src="' + image.Url + '" style="background-position:center center;background-size:contain;"></div>';
     } else {
         html += '<a is="emby-linkbutton" target="_blank" href="' + image.Url + '" class="button-link cardImageContainer lazy" data-src="' + image.Url + '" style="background-position:center center;background-size:contain"></a>';
diff --git a/src/components/imageeditor/imageeditor.js b/src/components/imageeditor/imageeditor.js
index ab5f7832d4..28716bfa34 100644
--- a/src/components/imageeditor/imageeditor.js
+++ b/src/components/imageeditor/imageeditor.js
@@ -1,3 +1,4 @@
+import { AppFeature } from 'constants/appFeature';
 import dialogHelper from '../dialogHelper/dialogHelper';
 import loading from '../loading/loading';
 import dom from '../../scripts/dom';
@@ -339,7 +340,7 @@ function showActionSheet(context, imageCard) {
 
 function initEditor(context, options) {
     const uploadButtons = context.querySelectorAll('.btnOpenUploadMenu');
-    const isFileInputSupported = appHost.supports('fileinput');
+    const isFileInputSupported = appHost.supports(AppFeature.FileInput);
     for (let i = 0, length = uploadButtons.length; i < length; i++) {
         if (isFileInputSupported) {
             uploadButtons[i].classList.remove('hide');
diff --git a/src/components/itemContextMenu.js b/src/components/itemContextMenu.js
index 959b391d88..172e77e5e7 100644
--- a/src/components/itemContextMenu.js
+++ b/src/components/itemContextMenu.js
@@ -11,6 +11,7 @@ import { playbackManager } from './playback/playbackmanager';
 import toast from './toast/toast';
 import * as userSettings from '../scripts/settings/userSettings';
 import { BaseItemKind } from '@jellyfin/sdk/lib/generated-client/models/base-item-kind';
+import { AppFeature } from 'constants/appFeature';
 
 function getDeleteLabel(type) {
     switch (type) {
@@ -169,7 +170,7 @@ export async function getCommands(options) {
         });
     }
 
-    if (appHost.supports('filedownload')) {
+    if (appHost.supports(AppFeature.FileDownload)) {
         // CanDownload should probably be updated to return true for these items?
         if (user.Policy.EnableContentDownloading && (item.Type === 'Season' || item.Type == 'Series')) {
             commands.push({
diff --git a/src/components/itemHelper.js b/src/components/itemHelper.js
index fa8aadbdd5..f21ce6e063 100644
--- a/src/components/itemHelper.js
+++ b/src/components/itemHelper.js
@@ -6,6 +6,7 @@ import { MediaType } from '@jellyfin/sdk/lib/generated-client/models/media-type'
 import { getPlaylistsApi } from '@jellyfin/sdk/lib/utils/api/playlists-api';
 
 import { appHost } from './apphost';
+import { AppFeature } from 'constants/appFeature';
 import globalize from 'lib/globalize';
 import { ServerConnections } from 'lib/jellyfin-apiclient';
 import { toApi } from 'utils/jellyfin-apiclient/compat';
@@ -238,7 +239,7 @@ export function canShare (item, user) {
     if (isLocalItem(item)) {
         return false;
     }
-    return user.Policy.EnablePublicSharing && appHost.supports('sharing');
+    return user.Policy.EnablePublicSharing && appHost.supports(AppFeature.Sharing);
 }
 
 export function enableDateAddedDisplay (item) {
diff --git a/src/components/multiSelect/multiSelect.js b/src/components/multiSelect/multiSelect.js
index 95e59d9ca8..d6ad634cf3 100644
--- a/src/components/multiSelect/multiSelect.js
+++ b/src/components/multiSelect/multiSelect.js
@@ -1,3 +1,4 @@
+import { AppFeature } from 'constants/appFeature';
 import browser from '../../scripts/browser';
 import { appHost } from '../apphost';
 import loading from '../loading/loading';
@@ -198,7 +199,7 @@ function showMenuForSelectedItems(e) {
                 });
             }
 
-            if (user.Policy.EnableContentDownloading && appHost.supports('filedownload')) {
+            if (user.Policy.EnableContentDownloading && appHost.supports(AppFeature.FileDownload)) {
                 // Disabled because there is no callback for this item
             }
 
diff --git a/src/components/nowPlayingBar/nowPlayingBar.js b/src/components/nowPlayingBar/nowPlayingBar.js
index 0184cec0b2..9dd5d09525 100644
--- a/src/components/nowPlayingBar/nowPlayingBar.js
+++ b/src/components/nowPlayingBar/nowPlayingBar.js
@@ -1,6 +1,7 @@
 import { getImageUrl } from 'apps/stable/features/playback/utils/image';
 import { getItemTextLines } from 'apps/stable/features/playback/utils/itemText';
 import { appRouter, isLyricsPage } from 'components/router/appRouter';
+import { AppFeature } from 'constants/appFeature';
 import { ServerConnections } from 'lib/jellyfin-apiclient';
 
 import datetime from '../../scripts/datetime';
@@ -244,7 +245,7 @@ function bindEvents(elem) {
 
     toggleRepeatButtonIcon = toggleRepeatButton.querySelector('.material-icons');
 
-    volumeSliderContainer.classList.toggle('hide', appHost.supports('physicalvolumecontrol'));
+    volumeSliderContainer.classList.toggle('hide', appHost.supports(AppFeature.PhysicalVolumeControl));
 
     volumeSlider.addEventListener('input', (e) => {
         if (currentPlayer) {
@@ -441,7 +442,7 @@ function updatePlayerVolumeState(isMuted, volumeLevel) {
         showVolumeSlider = false;
     }
 
-    if (currentPlayer.isLocalPlayer && appHost.supports('physicalvolumecontrol')) {
+    if (currentPlayer.isLocalPlayer && appHost.supports(AppFeature.PhysicalVolumeControl)) {
         showMuteButton = false;
         showVolumeSlider = false;
     }
diff --git a/src/components/playback/playbackmanager.js b/src/components/playback/playbackmanager.js
index b3c519111e..1b5aee732b 100644
--- a/src/components/playback/playbackmanager.js
+++ b/src/components/playback/playbackmanager.js
@@ -24,6 +24,7 @@ import { getItemBackdropImageUrl } from '../../utils/jellyfin-apiclient/backdrop
 import { PlayerEvent } from 'apps/stable/features/playback/constants/playerEvent';
 import { bindMediaSegmentManager } from 'apps/stable/features/playback/utils/mediaSegmentManager';
 import { bindMediaSessionSubscriber } from 'apps/stable/features/playback/utils/mediaSessionSubscriber';
+import { AppFeature } from 'constants/appFeature';
 import { ServerConnections } from 'lib/jellyfin-apiclient';
 import { MediaError } from 'types/mediaError';
 import { getMediaError } from 'utils/mediaError';
@@ -41,7 +42,7 @@ function enableLocalPlaylistManagement(player) {
 }
 
 function supportsPhysicalVolumeControl(player) {
-    return player.isLocalPlayer && appHost.supports('physicalvolumecontrol');
+    return player.isLocalPlayer && appHost.supports(AppFeature.PhysicalVolumeControl);
 }
 
 function bindToFullscreenChange(player) {
@@ -317,7 +318,7 @@ function getAudioStreamUrl(item, transcodingProfile, directPlayContainers, apiCl
         PlaySessionId: startingPlaySession,
         StartTimeTicks: startPosition || 0,
         EnableRedirection: true,
-        EnableRemoteMedia: appHost.supports('remoteaudio'),
+        EnableRemoteMedia: appHost.supports(AppFeature.RemoteAudio),
         EnableAudioVbrEncoding: transcodingProfile.EnableAudioVbrEncoding
     });
 }
@@ -598,7 +599,7 @@ function supportsDirectPlay(apiClient, item, mediaSource) {
     const isFolderRip = mediaSource.VideoType === 'BluRay' || mediaSource.VideoType === 'Dvd' || mediaSource.VideoType === 'HdDvd';
 
     if (mediaSource.SupportsDirectPlay || isFolderRip) {
-        if (mediaSource.IsRemote && !appHost.supports('remotevideo')) {
+        if (mediaSource.IsRemote && !appHost.supports(AppFeature.RemoteVideo)) {
             return Promise.resolve(false);
         }
 
@@ -3689,7 +3690,7 @@ export class PlaybackManager {
             return streamInfo ? streamInfo.playbackStartTimeTicks : null;
         };
 
-        if (appHost.supports('remotecontrol')) {
+        if (appHost.supports(AppFeature.RemoteControl)) {
             import('../../scripts/serverNotifications').then(({ default: serverNotifications }) => {
                 Events.on(serverNotifications, 'ServerShuttingDown', self.setDefaultPlayerActive.bind(self));
                 Events.on(serverNotifications, 'ServerRestarting', self.setDefaultPlayerActive.bind(self));
@@ -4060,7 +4061,7 @@ export class PlaybackManager {
                 'PlayTrailers'
             ];
 
-            if (appHost.supports('fullscreenchange')) {
+            if (appHost.supports(AppFeature.Fullscreen)) {
                 list.push('ToggleFullscreen');
             }
 
diff --git a/src/components/playback/playerSelectionMenu.js b/src/components/playback/playerSelectionMenu.js
index 36de970a82..9aedf8217a 100644
--- a/src/components/playback/playerSelectionMenu.js
+++ b/src/components/playback/playerSelectionMenu.js
@@ -1,3 +1,4 @@
+import { AppFeature } from 'constants/appFeature';
 import Events from '../../utils/events.ts';
 import browser from '../../scripts/browser';
 import loading from '../loading/loading';
@@ -96,7 +97,7 @@ export function show(button) {
 
             // Unfortunately we can't allow the url to change or chromecast will throw a security error
             // Might be able to solve this in the future by moving the dialogs to hashbangs
-            if (!(!browser.chrome && !browser.edgeChromium || appHost.supports('castmenuhashchange'))) {
+            if (!(!browser.chrome && !browser.edgeChromium || appHost.supports(AppFeature.CastMenuHashChange))) {
                 menuOptions.enableHistory = false;
             }
 
diff --git a/src/components/playbackSettings/playbackSettings.js b/src/components/playbackSettings/playbackSettings.js
index 0050e0c666..a98b3ab3fe 100644
--- a/src/components/playbackSettings/playbackSettings.js
+++ b/src/components/playbackSettings/playbackSettings.js
@@ -3,6 +3,7 @@ import escapeHTML from 'escape-html';
 
 import { MediaSegmentAction } from 'apps/stable/features/playback/constants/mediaSegmentAction';
 import { getId, getMediaSegmentAction } from 'apps/stable/features/playback/utils/mediaSegmentSettings';
+import { AppFeature } from 'constants/appFeature';
 import { ServerConnections } from 'lib/jellyfin-apiclient';
 
 import appSettings from '../../scripts/settings/appSettings';
@@ -147,7 +148,7 @@ function showHideQualityFields(context, user, apiClient) {
         context.querySelector('.videoQualitySection').classList.add('hide');
     }
 
-    if (appHost.supports('multiserver')) {
+    if (appHost.supports(AppFeature.MultiServer)) {
         context.querySelector('.fldVideoInNetworkQuality').classList.remove('hide');
         context.querySelector('.fldVideoInternetQuality').classList.remove('hide');
 
@@ -204,7 +205,7 @@ function loadForm(context, user, userSettings, systemInfo, apiClient) {
         context.querySelector('.chkEpisodeAutoPlay').checked = user.Configuration.EnableNextEpisodeAutoPlay || false;
     });
 
-    if (appHost.supports('externalplayerintent') && userId === loggedInUserId) {
+    if (appHost.supports(AppFeature.ExternalPlayerIntent) && userId === loggedInUserId) {
         context.querySelector('.fldExternalPlayer').classList.remove('hide');
     } else {
         context.querySelector('.fldExternalPlayer').classList.add('hide');
@@ -213,7 +214,7 @@ function loadForm(context, user, userSettings, systemInfo, apiClient) {
     if (userId === loggedInUserId && (user.Policy.EnableVideoPlaybackTranscoding || user.Policy.EnableAudioPlaybackTranscoding)) {
         context.querySelector('.qualitySections').classList.remove('hide');
 
-        if (appHost.supports('chromecast') && user.Policy.EnableVideoPlaybackTranscoding) {
+        if (appHost.supports(AppFeature.Chromecast) && user.Policy.EnableVideoPlaybackTranscoding) {
             context.querySelector('.fldChromecastQuality').classList.remove('hide');
         } else {
             context.querySelector('.fldChromecastQuality').classList.add('hide');
diff --git a/src/components/remotecontrol/remotecontrol.js b/src/components/remotecontrol/remotecontrol.js
index a2d32ed24d..bbef1931bc 100644
--- a/src/components/remotecontrol/remotecontrol.js
+++ b/src/components/remotecontrol/remotecontrol.js
@@ -2,6 +2,7 @@ import escapeHtml from 'escape-html';
 
 import { getImageUrl } from 'apps/stable/features/playback/utils/image';
 import { getItemTextLines } from 'apps/stable/features/playback/utils/itemText';
+import { AppFeature } from 'constants/appFeature';
 
 import datetime from '../../scripts/datetime';
 import { clearBackdrop, setBackdrops } from '../backdrop/backdrop';
@@ -371,7 +372,7 @@ export default function () {
             showVolumeSlider = false;
         }
 
-        if (currentPlayer.isLocalPlayer && appHost.supports('physicalvolumecontrol')) {
+        if (currentPlayer.isLocalPlayer && appHost.supports(AppFeature.PhysicalVolumeControl)) {
             showMuteButton = false;
             showVolumeSlider = false;
         }
diff --git a/src/components/slideshow/slideshow.js b/src/components/slideshow/slideshow.js
index 49bf8dc1e2..04f728c37d 100644
--- a/src/components/slideshow/slideshow.js
+++ b/src/components/slideshow/slideshow.js
@@ -2,6 +2,7 @@
  * Image viewer component
  * @module components/slideshow/slideshow
  */
+import { AppFeature } from 'constants/appFeature';
 import dialogHelper from '../dialogHelper/dialogHelper';
 import { ServerConnections } from 'lib/jellyfin-apiclient';
 import inputManager from '../../scripts/inputManager';
@@ -172,10 +173,10 @@ export default function (options) {
             if (actionButtonsOnTop) {
                 html += getIcon('play_arrow', 'btnSlideshowPause slideshowButton', true);
 
-                if (appHost.supports('filedownload') && slideshowOptions.user?.Policy.EnableContentDownloading) {
+                if (appHost.supports(AppFeature.FileDownload) && slideshowOptions.user?.Policy.EnableContentDownloading) {
                     html += getIcon('file_download', 'btnDownload slideshowButton', true);
                 }
-                if (appHost.supports('sharing')) {
+                if (appHost.supports(AppFeature.Sharing)) {
                     html += getIcon('share', 'btnShare slideshowButton', true);
                 }
                 if (screenfull.isEnabled) {
@@ -190,10 +191,10 @@ export default function (options) {
                 html += '<div class="slideshowBottomBar hide">';
 
                 html += getIcon('play_arrow', 'btnSlideshowPause slideshowButton', true, true);
-                if (appHost.supports('filedownload') && slideshowOptions?.user.Policy.EnableContentDownloading) {
+                if (appHost.supports(AppFeature.FileDownload) && slideshowOptions?.user.Policy.EnableContentDownloading) {
                     html += getIcon('file_download', 'btnDownload slideshowButton', true);
                 }
-                if (appHost.supports('sharing')) {
+                if (appHost.supports(AppFeature.Sharing)) {
                     html += getIcon('share', 'btnShare slideshowButton', true);
                 }
                 if (screenfull.isEnabled) {
diff --git a/src/components/subtitleeditor/subtitleeditor.js b/src/components/subtitleeditor/subtitleeditor.js
index fa4d71e846..9a110c2061 100644
--- a/src/components/subtitleeditor/subtitleeditor.js
+++ b/src/components/subtitleeditor/subtitleeditor.js
@@ -1,4 +1,6 @@
 import escapeHtml from 'escape-html';
+
+import { AppFeature } from 'constants/appFeature';
 import { appHost } from '../apphost';
 import dialogHelper from '../dialogHelper/dialogHelper';
 import layoutManager from '../layoutManager';
@@ -440,7 +442,7 @@ function showEditorInternal(itemId, serverId) {
         }
 
         // Don't allow redirection to other websites from the TV layout
-        if (layoutManager.tv || !appHost.supports('externallinks')) {
+        if (layoutManager.tv || !appHost.supports(AppFeature.ExternalLinks)) {
             dlg.querySelector('.btnHelp').remove();
         }
 
diff --git a/src/components/subtitlesettings/subtitlesettings.js b/src/components/subtitlesettings/subtitlesettings.js
index ee8b2c3ed1..d16662943c 100644
--- a/src/components/subtitlesettings/subtitlesettings.js
+++ b/src/components/subtitlesettings/subtitlesettings.js
@@ -1,3 +1,4 @@
+import { AppFeature } from 'constants/appFeature';
 import globalize from '../../lib/globalize';
 import { ServerConnections } from 'lib/jellyfin-apiclient';
 import { appHost } from '../apphost';
@@ -40,7 +41,7 @@ function getSubtitleAppearanceObject(context) {
 
 function loadForm(context, user, userSettings, appearanceSettings, apiClient) {
     apiClient.getCultures().then(function (allCultures) {
-        if (appHost.supports('subtitleburnsettings') && user.Policy.EnableVideoPlaybackTranscoding) {
+        if (appHost.supports(AppFeature.SubtitleBurnIn) && user.Policy.EnableVideoPlaybackTranscoding) {
             context.querySelector('.fldBurnIn').classList.remove('hide');
         }
 
@@ -208,7 +209,7 @@ function embed(options, self) {
         options.element.querySelector('.btnSave').classList.remove('hide');
     }
 
-    if (appHost.supports('subtitleappearancesettings')) {
+    if (appHost.supports(AppFeature.SubtitleAppearance)) {
         options.element.querySelector('.subtitleAppearanceSection').classList.remove('hide');
 
         self._fullPreview = options.element.querySelector('.subtitleappearance-fullpreview');
diff --git a/src/components/toolbar/AppUserMenu.tsx b/src/components/toolbar/AppUserMenu.tsx
index 69a0ad7f8a..c374d83140 100644
--- a/src/components/toolbar/AppUserMenu.tsx
+++ b/src/components/toolbar/AppUserMenu.tsx
@@ -16,6 +16,7 @@ import React, { FC, useCallback } from 'react';
 import { Link } from 'react-router-dom';
 
 import { appHost } from 'components/apphost';
+import { AppFeature } from 'constants/appFeature';
 import { useApi } from 'hooks/useApi';
 import { useQuickConnectEnabled } from 'hooks/useQuickConnect';
 import globalize from 'lib/globalize';
@@ -97,7 +98,7 @@ const AppUserMenu: FC<AppUserMenuProps> = ({
                 </ListItemText>
             </MenuItem>
 
-            {appHost.supports('clientsettings') && ([
+            {appHost.supports(AppFeature.ClientSettings) && ([
                 <Divider key='client-settings-divider' />,
                 <MenuItem
                     key='client-settings-button'
@@ -156,7 +157,7 @@ const AppUserMenu: FC<AppUserMenuProps> = ({
                 </MenuItem>
             )}
 
-            {appHost.supports('multiserver') && (
+            {appHost.supports(AppFeature.MultiServer) && (
                 <MenuItem
                     onClick={onSelectServerClick}
                 >
@@ -180,7 +181,7 @@ const AppUserMenu: FC<AppUserMenuProps> = ({
                 </ListItemText>
             </MenuItem>
 
-            {appHost.supports('exitmenu') && ([
+            {appHost.supports(AppFeature.ExitMenu) && ([
                 <Divider key='exit-menu-divider' />,
                 <MenuItem
                     key='exit-menu-button'
diff --git a/src/constants/appFeature.ts b/src/constants/appFeature.ts
new file mode 100644
index 0000000000..70d0f68ec2
--- /dev/null
+++ b/src/constants/appFeature.ts
@@ -0,0 +1,57 @@
+/** App feature flags */
+export enum AppFeature {
+    /** The app supports changing the URL hash when the cast menu opens */
+    CastMenuHashChange = 'castmenuhashchange',
+    /** The app supports Chromecast */
+    Chromecast = 'chromecast',
+    /** The app supports showing client settings via a menu entry */
+    ClientSettings = 'clientsettings',
+    /** The app supports configuring the display language */
+    DisplayLanguage = 'displaylanguage',
+    /** The app supports configuring the display mode (TV, Desktop, etc.) */
+    DisplayMode = 'displaymode',
+    /** The app can exit via back navigation */
+    Exit = 'exit',
+    /** The app can be exited via a menu entry */
+    ExitMenu = 'exitmenu',
+    /** The app can open external URLs */
+    ExternalLinks = 'externallinks',
+    /** The app supports enabling external players */
+    ExternalPlayerIntent = 'externalplayerintent',
+    /** The app supports file downloads */
+    FileDownload = 'filedownload',
+    /** The app supports file input elements */
+    FileInput = 'fileinput',
+    /** The app supports enabling fullscreen media playback */
+    Fullscreen = 'fullscreenchange',
+    /** The app supports autoplay on the audio element */
+    HtmlAudioAutoplay = 'htmlaudioautoplay',
+    /** The app supports autoplay on the video element */
+    HtmlVideoAutoplay = 'htmlvideoautoplay',
+    /** The app supports switching servers */
+    MultiServer = 'multiserver',
+    /** The app supports playback of BluRay folders */
+    NativeBluRayPlayback = 'nativeblurayplayback',
+    /** The app supports playback of DVD folders */
+    NativeDvdPlayback = 'nativedvdplayback',
+    /** The app supports playback of ISO files */
+    NativeIsoPlayback = 'nativeisoplayback',
+    /** The app supports physical volume buttons */
+    PhysicalVolumeControl = 'physicalvolumecontrol',
+    /** The app supports playing remote audio */
+    RemoteAudio = 'remoteaudio',
+    /** The app supports the remote control (casting) feature */
+    RemoteControl = 'remotecontrol',
+    /** The app supports playing remote video */
+    RemoteVideo = 'remotevideo',
+    /** The app supports displaying a screensaver */
+    Screensaver = 'screensaver',
+    /** The app supports sharing content */
+    Sharing = 'sharing',
+    /** The app supports configuring subtitle appearance */
+    SubtitleAppearance = 'subtitleappearancesettings',
+    /** The app supports configuring subtitle burn-in */
+    SubtitleBurnIn = 'subtitleburnsettings',
+    /** The app can open URLs in a blank page. */
+    TargetBlank = 'targetblank'
+}
diff --git a/src/controllers/itemDetails/index.js b/src/controllers/itemDetails/index.js
index 122b6a7c33..8dd1840964 100644
--- a/src/controllers/itemDetails/index.js
+++ b/src/controllers/itemDetails/index.js
@@ -21,6 +21,7 @@ import loading from 'components/loading/loading';
 import { playbackManager } from 'components/playback/playbackmanager';
 import { appRouter } from 'components/router/appRouter';
 import itemShortcuts from 'components/shortcuts';
+import { AppFeature } from 'constants/appFeature';
 import globalize from 'lib/globalize';
 import { ServerConnections } from 'lib/jellyfin-apiclient';
 import browser from 'scripts/browser';
@@ -636,7 +637,7 @@ function reloadFromItem(instance, page, params, item, user) {
 
     if (item.Type == 'Person' && item.ProductionLocations && item.ProductionLocations.length) {
         let location = item.ProductionLocations[0];
-        if (!layoutManager.tv && appHost.supports('externallinks')) {
+        if (!layoutManager.tv && appHost.supports(AppFeature.ExternalLinks)) {
             location = `<a is="emby-linkbutton" class="button-link textlink" target="_blank" href="https://www.openstreetmap.org/search?query=${encodeURIComponent(location)}">${escapeHtml(location)}</a>`;
         } else {
             location = escapeHtml(location);
@@ -650,7 +651,7 @@ function reloadFromItem(instance, page, params, item, user) {
     setPeopleHeader(page, item);
     loading.hide();
 
-    if (item.Type === 'Book' && item.CanDownload && appHost.supports('filedownload')) {
+    if (item.Type === 'Book' && item.CanDownload && appHost.supports(AppFeature.FileDownload)) {
         hideAll(page, 'btnDownload', true);
     }
 
@@ -1083,7 +1084,7 @@ function renderDetails(page, item, apiClient, context) {
     renderLyricsContainer(page, item, apiClient);
 
     // Don't allow redirection to other websites from the TV layout
-    if (!layoutManager.tv && appHost.supports('externallinks')) {
+    if (!layoutManager.tv && appHost.supports(AppFeature.ExternalLinks)) {
         renderLinks(page, item);
     }
 
diff --git a/src/controllers/playback/video/index.js b/src/controllers/playback/video/index.js
index e0d51005f4..c0be4c579c 100644
--- a/src/controllers/playback/video/index.js
+++ b/src/controllers/playback/video/index.js
@@ -1,4 +1,10 @@
 import escapeHtml from 'escape-html';
+
+import { PlayerEvent } from 'apps/stable/features/playback/constants/playerEvent';
+import { AppFeature } from 'constants/appFeature';
+import { TICKS_PER_MINUTE, TICKS_PER_SECOND } from 'constants/time';
+import { EventType } from 'types/eventType';
+
 import { playbackManager } from '../../../components/playback/playbackmanager';
 import browser from '../../../scripts/browser';
 import dom from '../../../scripts/dom';
@@ -27,9 +33,6 @@ import LibraryMenu from '../../../scripts/libraryMenu';
 import { setBackdropTransparency, TRANSPARENCY_LEVEL } from '../../../components/backdrop/backdrop';
 import { pluginManager } from '../../../components/pluginManager';
 import { PluginType } from '../../../types/plugin.ts';
-import { EventType } from 'types/eventType';
-import { TICKS_PER_MINUTE, TICKS_PER_SECOND } from 'constants/time';
-import { PlayerEvent } from 'apps/stable/features/playback/constants/playerEvent';
 
 function getOpenedDialog() {
     return document.querySelector('.dialogContainer .dialog.opened');
@@ -872,7 +875,7 @@ export default function (view) {
             showVolumeSlider = false;
         }
 
-        if (player.isLocalPlayer && appHost.supports('physicalvolumecontrol')) {
+        if (player.isLocalPlayer && appHost.supports(AppFeature.PhysicalVolumeControl)) {
             showMuteButton = false;
             showVolumeSlider = false;
         }
diff --git a/src/controllers/session/login/index.js b/src/controllers/session/login/index.js
index e99d14da41..2ba0ad6e39 100644
--- a/src/controllers/session/login/index.js
+++ b/src/controllers/session/login/index.js
@@ -1,5 +1,9 @@
 import DOMPurify from 'dompurify';
 import markdownIt from 'markdown-it';
+
+import { AppFeature } from 'constants/appFeature';
+import { ServerConnections } from 'lib/jellyfin-apiclient';
+
 import { appHost } from '../../../components/apphost';
 import appSettings from '../../../scripts/settings/appSettings';
 import dom from '../../../scripts/dom';
@@ -15,7 +19,6 @@ import toast from '../../../components/toast/toast';
 import dialogHelper from '../../../components/dialogHelper/dialogHelper';
 import baseAlert from '../../../components/alert';
 import { getDefaultBackgroundClass } from '../../../components/cardbuilder/cardBuilderUtils';
-import { ServerConnections } from 'lib/jellyfin-apiclient';
 
 import './login.scss';
 
@@ -263,7 +266,7 @@ export default function (view, params) {
         loading.show();
         libraryMenu.setTransparentMenu(true);
 
-        if (!appHost.supports('multiserver')) {
+        if (!appHost.supports(AppFeature.MultiServer)) {
             view.querySelector('.btnSelectServer').classList.add('hide');
         }
 
diff --git a/src/elements/emby-button/LinkButton.tsx b/src/elements/emby-button/LinkButton.tsx
index 359bc0d6b0..713aa0cb35 100644
--- a/src/elements/emby-button/LinkButton.tsx
+++ b/src/elements/emby-button/LinkButton.tsx
@@ -1,9 +1,12 @@
-import React, { AnchorHTMLAttributes, DetailedHTMLProps, MouseEvent, useCallback } from 'react';
 import classNames from 'classnames';
-import layoutManager from '../../components/layoutManager';
-import shell from '../../scripts/shell';
-import { appRouter } from '../../components/router/appRouter';
-import { appHost } from '../../components/apphost';
+import React, { AnchorHTMLAttributes, DetailedHTMLProps, MouseEvent, useCallback } from 'react';
+
+import { appHost } from 'components/apphost';
+import layoutManager from 'components/layoutManager';
+import { appRouter } from 'components/router/appRouter';
+import { AppFeature } from 'constants/appFeature';
+import shell from 'scripts/shell';
+
 import './emby-button.scss';
 
 interface LinkButtonProps extends DetailedHTMLProps<AnchorHTMLAttributes<HTMLAnchorElement>,
@@ -28,7 +31,7 @@ const LinkButton: React.FC<LinkButtonProps> = ({
         const url = href || '';
         if (url !== '#') {
             if (target) {
-                if (!appHost.supports('targetblank')) {
+                if (!appHost.supports(AppFeature.TargetBlank)) {
                     e.preventDefault();
                     shell.openUrl(url);
                 }
@@ -45,7 +48,7 @@ const LinkButton: React.FC<LinkButtonProps> = ({
         onClick?.(e);
     }, [ href, target, onClick ]);
 
-    if (isAutoHideEnabled === true && !appHost.supports('externallinks')) {
+    if (isAutoHideEnabled === true && !appHost.supports(AppFeature.ExternalLinks)) {
         return null;
     }
 
diff --git a/src/elements/emby-button/emby-button.js b/src/elements/emby-button/emby-button.js
index 0349bd38a9..d41474c364 100644
--- a/src/elements/emby-button/emby-button.js
+++ b/src/elements/emby-button/emby-button.js
@@ -1,9 +1,12 @@
 import 'webcomponents.js/webcomponents-lite';
-import { removeEventListener, addEventListener } from '../../scripts/dom';
-import layoutManager from '../../components/layoutManager';
-import shell from '../../scripts/shell';
-import { appRouter } from '../../components/router/appRouter';
-import { appHost } from '../../components/apphost';
+
+import { appHost } from 'components/apphost';
+import layoutManager from 'components/layoutManager';
+import { appRouter } from 'components/router/appRouter';
+import { AppFeature } from 'constants/appFeature';
+import { removeEventListener, addEventListener } from 'scripts/dom';
+import shell from 'scripts/shell';
+
 import './emby-button.scss';
 
 const EmbyButtonPrototype = Object.create(HTMLButtonElement.prototype);
@@ -13,7 +16,7 @@ function onAnchorClick(e) {
     const href = this.getAttribute('href') || '';
     if (href !== '#') {
         if (this.getAttribute('target')) {
-            if (!appHost.supports('targetblank')) {
+            if (!appHost.supports(AppFeature.TargetBlank)) {
                 e.preventDefault();
                 shell.openUrl(href);
             }
@@ -46,7 +49,7 @@ EmbyButtonPrototype.attachedCallback = function () {
         addEventListener(this, 'click', onAnchorClick, {});
 
         if (this.getAttribute('data-autohide') === 'true') {
-            if (appHost.supports('externallinks')) {
+            if (appHost.supports(AppFeature.ExternalLinks)) {
                 this.classList.remove('hide');
             } else {
                 this.classList.add('hide');
diff --git a/src/index.jsx b/src/index.jsx
index 8d57c445fa..30e8b8aa6e 100644
--- a/src/index.jsx
+++ b/src/index.jsx
@@ -12,6 +12,7 @@ import autoFocuser from './components/autoFocuser';
 import loading from 'components/loading/loading';
 import { pluginManager } from './components/pluginManager';
 import { appRouter } from './components/router/appRouter';
+import { AppFeature } from 'constants/appFeature';
 import globalize from './lib/globalize';
 import { loadCoreDictionary } from 'lib/globalize/loader';
 import { initialize as initializeAutoCast } from 'scripts/autocast';
@@ -136,7 +137,7 @@ async function loadPlugins() {
     console.dir(pluginManager);
 
     let list = await getPlugins();
-    if (!appHost.supports('remotecontrol')) {
+    if (!appHost.supports(AppFeature.RemoteControl)) {
         // Disable remote player plugins if not supported
         list = list.filter(plugin => !plugin.startsWith('sessionPlayer')
             && !plugin.startsWith('chromecastPlayer'));
@@ -165,12 +166,12 @@ function loadPlatformFeatures() {
         import('./components/nowPlayingBar/nowPlayingBar');
     }
 
-    if (appHost.supports('remotecontrol')) {
+    if (appHost.supports(AppFeature.RemoteControl)) {
         import('./components/playback/playerSelectionMenu');
         import('./components/playback/remotecontrolautoplay');
     }
 
-    if (!appHost.supports('physicalvolumecontrol') || browser.touch) {
+    if (!appHost.supports(AppFeature.PhysicalVolumeControl) || browser.touch) {
         import('./components/playback/volumeosd');
     }
 
diff --git a/src/plugins/htmlAudioPlayer/plugin.js b/src/plugins/htmlAudioPlayer/plugin.js
index b3900aad3c..07f7e2d2f3 100644
--- a/src/plugins/htmlAudioPlayer/plugin.js
+++ b/src/plugins/htmlAudioPlayer/plugin.js
@@ -1,3 +1,6 @@
+import { AppFeature } from 'constants/appFeature';
+import { MediaError } from 'types/mediaError';
+
 import browser from '../../scripts/browser';
 import { appHost } from '../../components/apphost';
 import * as htmlMediaHelper from '../../components/htmlMediaHelper';
@@ -5,7 +8,6 @@ import profileBuilder from '../../scripts/browserDeviceProfile';
 import { getIncludeCorsCredentials } from '../../scripts/settings/webSettings';
 import { PluginType } from '../../types/plugin.ts';
 import Events from '../../utils/events.ts';
-import { MediaError } from 'types/mediaError';
 
 function getDefaultProfile() {
     return profileBuilder({});
@@ -278,7 +280,7 @@ class HtmlAudioPlayer {
             }
 
             // TODO: Move volume control to PlaybackManager. Player should just be a wrapper that translates commands into API calls.
-            if (!appHost.supports('physicalvolumecontrol')) {
+            if (!appHost.supports(AppFeature.PhysicalVolumeControl)) {
                 elem.volume = htmlMediaHelper.getSavedVolume();
             }
 
diff --git a/src/plugins/htmlVideoPlayer/plugin.js b/src/plugins/htmlVideoPlayer/plugin.js
index fcaff8f323..541a13e91e 100644
--- a/src/plugins/htmlVideoPlayer/plugin.js
+++ b/src/plugins/htmlVideoPlayer/plugin.js
@@ -1,4 +1,10 @@
 import DOMPurify from 'dompurify';
+import debounce from 'lodash-es/debounce';
+import Screenfull from 'screenfull';
+
+import { AppFeature } from 'constants/appFeature';
+import { ServerConnections } from 'lib/jellyfin-apiclient';
+import { MediaError } from 'types/mediaError';
 
 import browser from '../../scripts/browser';
 import appSettings from '../../scripts/settings/appSettings';
@@ -27,9 +33,7 @@ import {
     getBufferedRanges
 } from '../../components/htmlMediaHelper';
 import itemHelper from '../../components/itemHelper';
-import Screenfull from 'screenfull';
 import globalize from '../../lib/globalize';
-import { ServerConnections } from 'lib/jellyfin-apiclient';
 import profileBuilder, { canPlaySecondaryAudio } from '../../scripts/browserDeviceProfile';
 import { getIncludeCorsCredentials } from '../../scripts/settings/webSettings';
 import { setBackdropTransparency, TRANSPARENCY_LEVEL } from '../../components/backdrop/backdrop';
@@ -37,8 +41,6 @@ import { PluginType } from '../../types/plugin.ts';
 import Events from '../../utils/events.ts';
 import { includesAny } from '../../utils/container.ts';
 import { isHls } from '../../utils/mediaSource.ts';
-import debounce from 'lodash-es/debounce';
-import { MediaError } from 'types/mediaError';
 
 /**
  * Returns resolved URL.
@@ -1667,7 +1669,7 @@ export class HtmlVideoPlayer {
                 const cssClass = 'htmlvideoplayer';
 
                 // Can't autoplay in these browsers so we need to use the full controls, at least until playback starts
-                if (!appHost.supports('htmlvideoautoplay')) {
+                if (!appHost.supports(AppFeature.HtmlVideoAutoplay)) {
                     html += '<video class="' + cssClass + '" preload="metadata" autoplay="autoplay" controls="controls" webkit-playsinline playsinline>';
                 } else if (browser.web0s) {
                     // in webOS, setting preload auto allows resuming videos
@@ -1683,7 +1685,7 @@ export class HtmlVideoPlayer {
                 const videoElement = playerDlg.querySelector('video');
 
                 // TODO: Move volume control to PlaybackManager. Player should just be a wrapper that translates commands into API calls.
-                if (!appHost.supports('physicalvolumecontrol')) {
+                if (!appHost.supports(AppFeature.PhysicalVolumeControl)) {
                     videoElement.volume = getSavedVolume();
                 }
 
diff --git a/src/plugins/syncPlay/ui/playbackPermissionManager.js b/src/plugins/syncPlay/ui/playbackPermissionManager.js
index 816b57bca9..5a8c87df5a 100644
--- a/src/plugins/syncPlay/ui/playbackPermissionManager.js
+++ b/src/plugins/syncPlay/ui/playbackPermissionManager.js
@@ -1,4 +1,5 @@
-import { appHost } from '../../../components/apphost';
+import { appHost } from 'components/apphost';
+import { AppFeature } from 'constants/appFeature';
 
 /**
  * Creates an audio element that plays a silent sound.
@@ -35,7 +36,7 @@ class PlaybackPermissionManager {
      * @returns {Promise} Promise that resolves succesfully if playback permission is allowed.
      */
     check () {
-        if (appHost.supports('htmlaudioautoplay')) {
+        if (appHost.supports(AppFeature.HtmlAudioAutoplay)) {
             return Promise.resolve(true);
         }
 
diff --git a/src/scripts/inputManager.js b/src/scripts/inputManager.js
index 83d0eafca3..1a3276c555 100644
--- a/src/scripts/inputManager.js
+++ b/src/scripts/inputManager.js
@@ -1,8 +1,9 @@
-import { playbackManager } from '../components/playback/playbackmanager';
-import focusManager from '../components/focusManager';
-import { appRouter } from '../components/router/appRouter';
-import dom from './dom';
-import { appHost } from '../components/apphost';
+import { appHost } from 'components/apphost';
+import focusManager from 'components/focusManager';
+import { playbackManager } from 'components/playback/playbackmanager';
+import { appRouter } from 'components/router/appRouter';
+import { AppFeature } from 'constants/appFeature';
+import dom from 'scripts/dom';
 
 let lastInputTime = new Date().getTime();
 
@@ -111,7 +112,7 @@ export function handleCommand(commandName, options) {
         'back': () => {
             if (appRouter.canGoBack()) {
                 appRouter.back();
-            } else if (appHost.supports('exit')) {
+            } else if (appHost.supports(AppFeature.Exit)) {
                 appHost.exit();
             }
         },
diff --git a/src/scripts/libraryMenu.js b/src/scripts/libraryMenu.js
index c4c6c6d4d8..e4ddf726bb 100644
--- a/src/scripts/libraryMenu.js
+++ b/src/scripts/libraryMenu.js
@@ -4,7 +4,10 @@ import Headroom from 'headroom.js';
 // eslint-disable-next-line @typescript-eslint/no-unused-vars
 import { ApiClient } from 'jellyfin-apiclient';
 
+import { AppFeature } from 'constants/appFeature';
 import { getUserViewsQuery } from 'hooks/useUserViews';
+import globalize from 'lib/globalize';
+import { ServerConnections } from 'lib/jellyfin-apiclient';
 import { EventType } from 'types/eventType';
 import { toApi } from 'utils/jellyfin-apiclient/compat';
 import { queryClient } from 'utils/query/queryClient';
@@ -19,8 +22,6 @@ import { playbackManager } from '../components/playback/playbackmanager';
 import { pluginManager } from '../components/pluginManager';
 import groupSelectionMenu from '../plugins/syncPlay/ui/groupSelectionMenu';
 import browser from './browser';
-import globalize from 'lib/globalize';
-import { ServerConnections } from 'lib/jellyfin-apiclient';
 import imageHelper from '../utils/image';
 import { getMenuLinks } from '../scripts/settings/webSettings';
 import Dashboard, { pageClassOn } from '../utils/dashboard';
@@ -348,14 +349,14 @@ function refreshLibraryInfoInDrawer(user) {
         html += globalize.translate('HeaderUser');
         html += '</h3>';
 
-        if (appHost.supports('multiserver')) {
+        if (appHost.supports(AppFeature.MultiServer)) {
             html += `<a is="emby-linkbutton" class="navMenuOption lnkMediaFolder btnSelectServer" data-itemid="selectserver" href="#"><span class="material-icons navMenuOptionIcon storage" aria-hidden="true"></span><span class="navMenuOptionText">${globalize.translate('SelectServer')}</span></a>`;
         }
 
         html += `<a is="emby-linkbutton" class="navMenuOption lnkMediaFolder btnSettings" data-itemid="settings" href="#"><span class="material-icons navMenuOptionIcon settings" aria-hidden="true"></span><span class="navMenuOptionText">${globalize.translate('Settings')}</span></a>`;
         html += `<a is="emby-linkbutton" class="navMenuOption lnkMediaFolder btnLogout" data-itemid="logout" href="#"><span class="material-icons navMenuOptionIcon exit_to_app" aria-hidden="true"></span><span class="navMenuOptionText">${globalize.translate('ButtonSignOut')}</span></a>`;
 
-        if (appHost.supports('exitmenu')) {
+        if (appHost.supports(AppFeature.ExitMenu)) {
             html += `<a is="emby-linkbutton" class="navMenuOption lnkMediaFolder exitApp" data-itemid="exitapp" href="#"><span class="material-icons navMenuOptionIcon close" aria-hidden="true"></span><span class="navMenuOptionText">${globalize.translate('ButtonExitApp')}</span></a>`;
         }