ios: fix media input sizing and playback progress

- Adds paste button
- Fix autofocus behavior (using UIKit)
- Remove pointless sheet detents

.env.example

@@ -0,0 +1,12 @@
+FASTLANE_SKIP_UPDATE_CHECK=1
+FASTLANE_HIDE_CHANGELOG=1
+
+# App Store Connect API key (the key content must be base64 encoded).
+APP_STORE_CONNECT_KEY_ID=
+APP_STORE_CONNECT_ISSUER_ID=
+APP_STORE_CONNECT_KEY_CONTENT=
+
+# Shared fastlane match repository.
+MATCH_GIT_URL=
+MATCH_PASSWORD=
+MATCH_GIT_BASIC_AUTHORIZATION=

.gitea/workflows/testflight.yml

@@ -0,0 +1,43 @@
+name: TestFlight
+
+on:
+  workflow_dispatch:
+  push:
+    tags:
+      - "release/ios/v*"
+      - "v[0-9]*"
+      - "[0-9]*"
+
+jobs:
+  testflight:
+    runs-on: macos-arm64
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Setup Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: "3.1.7"
+          bundler-cache: true
+
+      - name: Upload to TestFlight
+        env:
+          APP_STORE_CONNECT_KEY_ID: ${{ secrets.APP_STORE_CONNECT_KEY_ID }}
+          APP_STORE_CONNECT_ISSUER_ID: ${{ secrets.APP_STORE_CONNECT_ISSUER_ID }}
+          APP_STORE_CONNECT_KEY_CONTENT: ${{ secrets.APP_STORE_CONNECT_KEY_CONTENT }}
+          MATCH_PASSWORD: ${{ secrets.MATCH_PASSWORD }}
+          MATCH_GIT_URL: ${{ secrets.MATCH_GIT_URL }}
+          MATCH_GIT_BASIC_AUTHORIZATION: ${{ secrets.MATCH_GIT_BASIC_AUTHORIZATION }}
+          QUEUECUBE_VERSION_TAG: ${{ github.ref_name }}
+          FASTLANE_SKIP_UPDATE_CHECK: "1"
+          FASTLANE_HIDE_CHANGELOG: "1"
+          FASTLANE_XCODEBUILD_SETTINGS_TIMEOUT: "120"
+        # act_runner does not propagate setup-ruby's PATH changes into later
+        # steps, so put the selected Ruby back on PATH before running Bundler.
+        run: |
+          export PATH="/Users/runner/hostedtoolcache/Ruby/3.1.7/arm64/bin:${PATH}"
+          bundle exec fastlane ios beta

.gitignore

@@ -0,0 +1,7 @@
+/.env
+/.bundle/
+ios/build/
+fastlane/report.xml
+fastlane/Preview.html
+fastlane/screenshots/
+fastlane/test_output/

Gemfile

@@ -0,0 +1,3 @@
+source "https://rubygems.org"
+
+gem "fastlane"

Gemfile.lock

@@ -0,0 +1,231 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    CFPropertyList (3.0.8)
+    abbrev (0.1.2)
+    addressable (2.9.0)
+      public_suffix (>= 2.0.2, < 8.0)
+    artifactory (3.0.17)
+    atomos (0.1.3)
+    aws-eventstream (1.3.2)
+    aws-partitions (1.1109.0)
+    aws-sdk-core (3.224.1)
+      aws-eventstream (~> 1, >= 1.3.0)
+      aws-partitions (~> 1, >= 1.992.0)
+      aws-sigv4 (~> 1.9)
+      base64
+      jmespath (~> 1, >= 1.6.1)
+      logger
+    aws-sdk-kms (1.101.0)
+      aws-sdk-core (~> 3, >= 3.216.0)
+      aws-sigv4 (~> 1.5)
+    aws-sdk-s3 (1.188.0)
+      aws-sdk-core (~> 3, >= 3.224.1)
+      aws-sdk-kms (~> 1)
+      aws-sigv4 (~> 1.5)
+    aws-sigv4 (1.11.0)
+      aws-eventstream (~> 1, >= 1.0.2)
+    babosa (1.0.4)
+    base64 (0.2.0)
+    claide (1.1.0)
+    colored (1.2)
+    colored2 (3.1.2)
+    commander (4.6.0)
+      highline (~> 2.0.0)
+    csv (3.3.5)
+    declarative (0.0.20)
+    digest-crc (0.7.0)
+      rake (>= 12.0.0, < 14.0.0)
+    domain_name (0.5.20190701)
+      unf (>= 0.0.5, < 1.0.0)
+    dotenv (2.8.1)
+    emoji_regex (3.2.3)
+    excon (0.109.0)
+    faraday (1.10.6)
+      faraday-em_http (~> 1.0)
+      faraday-em_synchrony (~> 1.0)
+      faraday-excon (~> 1.1)
+      faraday-httpclient (~> 1.0)
+      faraday-multipart (~> 1.0)
+      faraday-net_http (~> 1.0)
+      faraday-net_http_persistent (~> 1.0)
+      faraday-patron (~> 1.0)
+      faraday-rack (~> 1.0)
+      faraday-retry (~> 1.0)
+      ruby2_keywords (>= 0.0.4)
+    faraday-cookie_jar (0.0.8)
+      faraday (>= 0.8.0)
+      http-cookie (>= 1.0.0)
+    faraday-em_http (1.0.0)
+    faraday-em_synchrony (1.0.1)
+    faraday-excon (1.1.0)
+    faraday-httpclient (1.0.1)
+    faraday-multipart (1.2.0)
+      multipart-post (~> 2.0)
+    faraday-net_http (1.0.2)
+    faraday-net_http_persistent (1.2.0)
+    faraday-patron (1.0.0)
+    faraday-rack (1.0.0)
+    faraday-retry (1.0.4)
+    faraday_middleware (1.2.1)
+      faraday (~> 1.0)
+    fastimage (2.4.1)
+    fastlane (2.230.0)
+      CFPropertyList (>= 2.3, < 4.0.0)
+      abbrev (~> 0.1.2)
+      addressable (>= 2.8, < 3.0.0)
+      artifactory (~> 3.0)
+      aws-sdk-s3 (~> 1.0)
+      babosa (>= 1.0.3, < 2.0.0)
+      base64 (~> 0.2.0)
+      bundler (>= 1.12.0, < 3.0.0)
+      colored (~> 1.2)
+      commander (~> 4.6)
+      csv (~> 3.3)
+      dotenv (>= 2.1.1, < 3.0.0)
+      emoji_regex (>= 0.1, < 4.0)
+      excon (>= 0.71.0, < 1.0.0)
+      faraday (~> 1.0)
+      faraday-cookie_jar (~> 0.0.6)
+      faraday_middleware (~> 1.0)
+      fastimage (>= 2.1.0, < 3.0.0)
+      fastlane-sirp (>= 1.0.0)
+      gh_inspector (>= 1.1.2, < 2.0.0)
+      google-apis-androidpublisher_v3 (~> 0.3)
+      google-apis-playcustomapp_v1 (~> 0.1)
+      google-cloud-env (>= 1.6.0, < 2.0.0)
+      google-cloud-storage (~> 1.31)
+      highline (~> 2.0)
+      http-cookie (~> 1.0.5)
+      json (< 3.0.0)
+      jwt (>= 2.1.0, < 3)
+      logger (>= 1.6, < 2.0)
+      mini_magick (>= 4.9.4, < 5.0.0)
+      multipart-post (>= 2.0.0, < 3.0.0)
+      mutex_m (~> 0.3.0)
+      naturally (~> 2.2)
+      nkf (~> 0.2.0)
+      optparse (>= 0.1.1, < 1.0.0)
+      plist (>= 3.1.0, < 4.0.0)
+      rubyzip (>= 2.0.0, < 3.0.0)
+      security (= 0.1.5)
+      simctl (~> 1.6.3)
+      terminal-notifier (>= 2.0.0, < 3.0.0)
+      terminal-table (~> 3)
+      tty-screen (>= 0.6.3, < 1.0.0)
+      tty-spinner (>= 0.8.0, < 1.0.0)
+      word_wrap (~> 1.0.0)
+      xcodeproj (>= 1.13.0, < 2.0.0)
+      xcpretty (~> 0.4.1)
+      xcpretty-travis-formatter (>= 0.0.3, < 2.0.0)
+    fastlane-sirp (1.1.0)
+    gh_inspector (1.1.3)
+    google-apis-androidpublisher_v3 (0.54.0)
+      google-apis-core (>= 0.11.0, < 2.a)
+    google-apis-core (0.11.3)
+      addressable (~> 2.5, >= 2.5.1)
+      googleauth (>= 0.16.2, < 2.a)
+      httpclient (>= 2.8.1, < 3.a)
+      mini_mime (~> 1.0)
+      representable (~> 3.0)
+      retriable (>= 2.0, < 4.a)
+      rexml
+    google-apis-iamcredentials_v1 (0.17.0)
+      google-apis-core (>= 0.11.0, < 2.a)
+    google-apis-playcustomapp_v1 (0.13.0)
+      google-apis-core (>= 0.11.0, < 2.a)
+    google-apis-storage_v1 (0.29.0)
+      google-apis-core (>= 0.11.0, < 2.a)
+    google-cloud-core (1.6.1)
+      google-cloud-env (>= 1.0, < 3.a)
+      google-cloud-errors (~> 1.0)
+    google-cloud-env (1.6.0)
+      faraday (>= 0.17.3, < 3.0)
+    google-cloud-errors (1.3.1)
+    google-cloud-storage (1.45.0)
+      addressable (~> 2.8)
+      digest-crc (~> 0.4)
+      google-apis-iamcredentials_v1 (~> 0.1)
+      google-apis-storage_v1 (~> 0.29.0)
+      google-cloud-core (~> 1.6)
+      googleauth (>= 0.16.2, < 2.a)
+      mini_mime (~> 1.0)
+    googleauth (1.8.1)
+      faraday (>= 0.17.3, < 3.a)
+      jwt (>= 1.4, < 3.0)
+      multi_json (~> 1.11)
+      os (>= 0.9, < 2.0)
+      signet (>= 0.16, < 2.a)
+    highline (2.0.3)
+    http-cookie (1.0.8)
+      domain_name (~> 0.5)
+    httpclient (2.9.0)
+      mutex_m
+    jmespath (1.6.2)
+    json (2.7.6)
+    jwt (2.10.3)
+      base64
+    logger (1.7.0)
+    mini_magick (4.13.2)
+    mini_mime (1.1.5)
+    multi_json (1.15.0)
+    multipart-post (2.4.1)
+    mutex_m (0.3.0)
+    nanaimo (0.4.0)
+    naturally (2.3.0)
+    nkf (0.2.0)
+    optparse (0.8.1)
+    os (1.1.4)
+    plist (3.7.2)
+    public_suffix (5.1.1)
+    rake (13.4.2)
+    representable (3.2.0)
+      declarative (< 0.1.0)
+      trailblazer-option (>= 0.1.1, < 0.2.0)
+      uber (< 0.2.0)
+    retriable (3.8.0)
+    rexml (3.4.4)
+    rouge (3.28.0)
+    ruby2_keywords (0.0.5)
+    rubyzip (2.4.1)
+    security (0.1.5)
+    signet (0.18.0)
+      addressable (~> 2.8)
+      faraday (>= 0.17.5, < 3.a)
+      jwt (>= 1.5, < 3.0)
+      multi_json (~> 1.10)
+    simctl (1.6.10)
+      CFPropertyList
+      naturally
+    terminal-notifier (2.0.0)
+    terminal-table (3.0.2)
+      unicode-display_width (>= 1.1.1, < 3)
+    trailblazer-option (0.1.2)
+    tty-cursor (0.7.1)
+    tty-screen (0.8.2)
+    tty-spinner (0.9.3)
+      tty-cursor (~> 0.7)
+    uber (0.1.0)
+    unf (0.2.0)
+    unicode-display_width (2.6.0)
+    word_wrap (1.0.0)
+    xcodeproj (1.27.0)
+      CFPropertyList (>= 2.3.3, < 4.0)
+      atomos (~> 0.1.3)
+      claide (>= 1.0.2, < 2.0)
+      colored2 (~> 3.1)
+      nanaimo (~> 0.4.0)
+      rexml (>= 3.3.6, < 4.0)
+    xcpretty (0.4.1)
+      rouge (~> 3.28.0)
+    xcpretty-travis-formatter (1.0.1)
+      xcpretty (~> 0.2, >= 0.0.7)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  fastlane
+
+BUNDLED WITH
+   2.5.23

README.md

@@ -4,6 +4,27 @@ QueueCube is a web frontend for [mpv](https://github.com/mpv-player/mpv).
 
 It allows you to remotely manage mpv's playqueue as well as the ability to search YouTube via a locally running [Invidious](https://github.com/iv-org/invidious) instance. 
 
+## iOS TestFlight releases
+
+Gitea Actions builds and uploads the iOS app when a version tag is pushed. The
+workflow accepts the repository's existing numeric tags (for example `3.2`),
+`v3.2`, and `release/ios/v3.2`; it can also be started manually.
+
+Configure these Gitea Actions secrets before the first run:
+
+- `APP_STORE_CONNECT_KEY_ID`
+- `APP_STORE_CONNECT_ISSUER_ID`
+- `APP_STORE_CONNECT_KEY_CONTENT`
+- `MATCH_GIT_URL`
+- `MATCH_PASSWORD`
+- `MATCH_GIT_BASIC_AUTHORIZATION`
+
+For local Fastlane use, copy `.env.example` to `.env` and fill in the same
+values. Run `bundle exec fastlane ios setup_signing` only when the match signing
+assets need to be created or updated. `bundle exec fastlane ios build` creates
+a signed IPA without uploading it, while `bundle exec fastlane ios beta`
+performs the release.
+
 ![queuecube user interface](screenshots/queuecube.png)
 
 ## Running 
@@ -36,6 +57,22 @@ Once running, you should be able to access the UI via http://localhost:8080.
 
 QueueCube supports video as well. Just set the environment variable `ENABLE_VIDEO=1`. 
 
+When video is enabled, QueueCube starts a managed `mpv` process. The process
+fullscreens by default; set `MPV_FULLSCREEN=0` to leave sizing and placement to
+your window manager. These optional environment variables are also passed to
+`mpv`:
+
+| Environment variable | mpv option |
+| --- | --- |
+| `MPV_WAYLAND_APP_ID` | `--wayland-app-id=...` |
+| `MPV_TITLE` | `--title=...` |
+| `MPV_BORDER` | `--border=...` |
+| `MPV_ONTOP=1` | `--ontop` |
+| `MPV_YTDL_FORMAT` | `--ytdl-format=...` |
+
+For less common options, `MPV_EXTRA_ARGS` can contain additional shell-style
+arguments that will be appended to the generated `mpv` command line.
+
 #### Video + Docker
 
 When running in a Docker container, there are a few extra steps needed to make this work. 
@@ -68,4 +105,3 @@ privileged: true
 (or `--privileged`). 
 
 On Podman rootless, it seems to be enough to just run it with the "unconfined" security profile (`seccomp=unconfined`). 
-

fastlane/Appfile

@@ -0,0 +1,6 @@
+apple_id("james.magahern@mac.com")
+app_identifier("net.buzzert.QueueCube")
+team_id("DQQH5H6GBD")
+team_name("James Magahern")
+itc_team_id("127764897")
+itc_team_name("James Magahern")

fastlane/Fastfile

@@ -0,0 +1,254 @@
+require "fileutils"
+require "open3"
+require "shellwords"
+require "tempfile"
+
+default_platform(:ios)
+
+BUNDLE_IDENTIFIER = "net.buzzert.QueueCube"
+DEVELOPMENT_TEAM = "DQQH5H6GBD"
+PROVISIONING_PROFILE_NAME = "QueueCube AppStore CI"
+CI_KEYCHAIN_NAME = "queuecube_ci_keychain"
+CI_KEYCHAIN_PASSWORD = "queuecube-ci-keychain-password"
+CI_KEYCHAIN_DB_PATH = File.expand_path("~/Library/Keychains/#{CI_KEYCHAIN_NAME}-db")
+APP_ROOT = File.expand_path("..", File.expand_path(__dir__))
+IOS_PROJECT_DIR = File.join(APP_ROOT, "ios")
+XCODE_PROJECT = File.join(IOS_PROJECT_DIR, "QueueCube.xcodeproj")
+SCHEME = "QueueCube"
+ARCHIVE_PATH = File.join(IOS_PROJECT_DIR, "build", "#{SCHEME}.xcarchive")
+EXPORT_PATH = File.join(IOS_PROJECT_DIR, "build", "upload")
+
+def shell_command(*parts)
+  parts.flatten.map { |part| part.to_s.shellescape }.join(" ")
+end
+
+def archive_path
+  ARCHIVE_PATH
+end
+
+def export_path
+  EXPORT_PATH
+end
+
+def git_output(*args)
+  stdout, stderr, status = Open3.capture3("git", *args, chdir: APP_ROOT)
+  UI.user_error!("git #{args.join(' ')} failed: #{stderr.strip}") unless status.success?
+
+  stdout.strip
+end
+
+def present?(value)
+  !value.to_s.strip.empty?
+end
+
+def ci?
+  present?(ENV["CI"])
+end
+
+def version_from_tag(tag)
+  patterns = [
+    %r{\Arelease/ios/v(\d+(?:\.\d+){0,2})\z},
+    %r{\Av?(\d+(?:\.\d+){0,2})\z}
+  ]
+
+  patterns.each do |pattern|
+    match = tag.to_s.match(pattern)
+    return match[1] if match
+  end
+
+  nil
+end
+
+def app_version
+  candidates = [
+    ENV["QUEUECUBE_VERSION_TAG"],
+    ENV["GITHUB_REF_NAME"],
+    ENV["GITHUB_REF"].to_s.sub(%r{\Arefs/tags/}, "")
+  ]
+
+  candidates.each do |tag|
+    version = version_from_tag(tag)
+    return version if version
+  end
+
+  latest_tag = git_output("describe", "--tags", "--abbrev=0")
+  version = version_from_tag(latest_tag)
+  return version if version
+
+  candidates << latest_tag
+  UI.user_error!("Release tag must look like 3.2, v3.2, or release/ios/v3.2; got #{candidates.compact.inspect}")
+end
+
+def build_number
+  value = ENV["QUEUECUBE_BUILD_NUMBER"]
+  value = Time.now.utc.strftime("%Y%m%d%H%M%S") unless present?(value)
+
+  unless value.to_s.match?(/\A\d+\z/)
+    UI.user_error!("Build number must be numeric; got #{value.inspect}")
+  end
+
+  value.to_s
+end
+
+def upload_export_options
+  <<~PLIST
+    <?xml version="1.0" encoding="UTF-8"?>
+    <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+    <plist version="1.0">
+    <dict>
+      <key>method</key>
+      <string>app-store-connect</string>
+      <key>signingStyle</key>
+      <string>manual</string>
+      <key>teamID</key>
+      <string>#{DEVELOPMENT_TEAM}</string>
+      <key>signingCertificate</key>
+      <string>Apple Distribution</string>
+      <key>provisioningProfiles</key>
+      <dict>
+        <key>#{BUNDLE_IDENTIFIER}</key>
+        <string>#{PROVISIONING_PROFILE_NAME}</string>
+      </dict>
+      <key>manageAppVersionAndBuildNumber</key>
+      <false/>
+      <key>stripSwiftSymbols</key>
+      <true/>
+      <key>uploadSymbols</key>
+      <true/>
+    </dict>
+    </plist>
+  PLIST
+end
+
+platform :ios do
+  private_lane :app_store_api_key do
+    app_store_connect_api_key(
+      key_id: ENV.fetch("APP_STORE_CONNECT_KEY_ID"),
+      issuer_id: ENV.fetch("APP_STORE_CONNECT_ISSUER_ID"),
+      key_content: ENV.fetch("APP_STORE_CONNECT_KEY_CONTENT"),
+      is_key_content_base64: true
+    )
+  end
+
+  # CI signs headlessly, so match imports the distribution identity into a
+  # fresh keychain. Put it first because this shared runner may have locked
+  # keychains from other projects containing the same identity.
+  private_lane :prepare_ci_keychain do
+    next unless ci?
+
+    delete_keychain(name: CI_KEYCHAIN_NAME) if File.file?(CI_KEYCHAIN_DB_PATH)
+    create_keychain(
+      name: CI_KEYCHAIN_NAME,
+      password: CI_KEYCHAIN_PASSWORD,
+      unlock: true,
+      timeout: 3600,
+      add_to_search_list: false
+    )
+
+    others = sh("security list-keychains -d user", log: false)
+      .scan(/"([^"]+)"/)
+      .flatten
+      .reject { |path| path.include?(CI_KEYCHAIN_NAME) }
+    sh("security list-keychains -d user -s #{([CI_KEYCHAIN_DB_PATH] + others).shelljoin}")
+
+    ENV["MATCH_KEYCHAIN_NAME"] = CI_KEYCHAIN_NAME
+    ENV["MATCH_KEYCHAIN_PASSWORD"] = CI_KEYCHAIN_PASSWORD
+  end
+
+  private_lane :sync_signing do |options|
+    match(
+      type: "appstore",
+      readonly: options.fetch(:readonly),
+      app_identifier: BUNDLE_IDENTIFIER,
+      team_id: DEVELOPMENT_TEAM,
+      profile_name: PROVISIONING_PROFILE_NAME,
+      git_url: ENV.fetch("MATCH_GIT_URL"),
+      git_branch: ENV.fetch("MATCH_GIT_BRANCH", "master"),
+      git_full_name: "QueueCube Release Bot",
+      git_user_email: "james.magahern@me.com",
+      api_key: options.fetch(:api_key)
+    )
+  end
+
+  desc "Create or update match signing assets"
+  lane :setup_signing do
+    sync_signing(api_key: app_store_api_key, readonly: false)
+  end
+
+  private_lane :build_release do
+    prepare_ci_keychain
+
+    api_key = app_store_api_key
+    version = app_version
+    build = build_number
+    UI.message("Using QueueCube version #{version} (build #{build}) from git")
+
+    sync_signing(api_key: api_key, readonly: true)
+
+    FileUtils.rm_rf(archive_path)
+    FileUtils.rm_rf(export_path)
+
+    Dir.chdir(IOS_PROJECT_DIR) do
+      sh(shell_command(
+        "xcodebuild",
+        "-project", XCODE_PROJECT,
+        "-scheme", SCHEME,
+        "-configuration", "Release",
+        "-destination", "generic/platform=iOS",
+        "-archivePath", archive_path,
+        "-allowProvisioningUpdates",
+        "clean",
+        "archive",
+        "DEVELOPMENT_TEAM=#{DEVELOPMENT_TEAM}",
+        "PRODUCT_BUNDLE_IDENTIFIER=#{BUNDLE_IDENTIFIER}",
+        "MARKETING_VERSION=#{version}",
+        "CURRENT_PROJECT_VERSION=#{build}",
+        "CODE_SIGN_STYLE=Manual",
+        "CODE_SIGN_IDENTITY=Apple Distribution",
+        "PROVISIONING_PROFILE_SPECIFIER=#{PROVISIONING_PROFILE_NAME}"
+      ))
+    end
+
+    export_options = Tempfile.new(["queuecube-export-options", ".plist"])
+    export_options.write(upload_export_options)
+    export_options.close
+
+    FileUtils.rm_rf(export_path)
+    Dir.chdir(IOS_PROJECT_DIR) do
+      sh(shell_command(
+        "xcodebuild",
+        "-exportArchive",
+        "-archivePath", archive_path,
+        "-exportPath", export_path,
+        "-exportOptionsPlist", export_options.path,
+        "-allowProvisioningUpdates"
+      ))
+    end
+
+    ipa_path = Dir[File.join(export_path, "*.ipa")].first
+    UI.user_error!("No IPA found in #{export_path}") unless ipa_path
+
+    { api_key: api_key, ipa_path: ipa_path }
+  ensure
+    export_options&.unlink
+    delete_keychain(name: CI_KEYCHAIN_NAME) if ci? && File.file?(CI_KEYCHAIN_DB_PATH)
+  end
+
+  desc "Build an App Store-signed QueueCube IPA without uploading it"
+  lane :build do
+    build_release
+  end
+
+  desc "Build QueueCube for iOS and upload the archive to TestFlight"
+  lane :beta do
+    release = build_release
+
+    upload_to_testflight(
+      api_key: release.fetch(:api_key),
+      app_identifier: BUNDLE_IDENTIFIER,
+      ipa: release.fetch(:ipa_path),
+      skip_waiting_for_build_processing: true,
+      uses_non_exempt_encryption: false
+    )
+  end
+end

fastlane/README.md

@@ -0,0 +1,48 @@
+fastlane documentation
+----
+
+# Installation
+
+Make sure you have the latest version of the Xcode command line tools installed:
+
+```sh
+xcode-select --install
+```
+
+For _fastlane_ installation instructions, see [Installing _fastlane_](https://docs.fastlane.tools/#installing-fastlane)
+
+# Available Actions
+
+## iOS
+
+### ios setup_signing
+
+```sh
+[bundle exec] fastlane ios setup_signing
+```
+
+Create or update match signing assets
+
+### ios build
+
+```sh
+[bundle exec] fastlane ios build
+```
+
+Build an App Store-signed QueueCube IPA without uploading it
+
+### ios beta
+
+```sh
+[bundle exec] fastlane ios beta
+```
+
+Build QueueCube for iOS and upload the archive to TestFlight
+
+----
+
+This README.md is auto-generated and will be re-generated every time [_fastlane_](https://fastlane.tools) is run.
+
+More information about _fastlane_ can be found on [fastlane.tools](https://fastlane.tools).
+
+The documentation of _fastlane_ can be found on [docs.fastlane.tools](https://docs.fastlane.tools).

ios/QueueCube.xcodeproj/project.pbxproj

@@ -14,6 +14,7 @@
 		CD8ACBBF2DC5B8F2008BF856 /* Exceptions for "QueueCube" folder in "QueueCube" target */ = {
 			isa = PBXFileSystemSynchronizedBuildFileExceptionSet;
 			membershipExceptions = (
+				App/Entitlements.plist,
 				App/Info.plist,
 			);
 			target = CD4E9B962D7691C20066FC17 /* QueueCube */;
@@ -268,7 +269,7 @@
 				CODE_SIGN_IDENTITY = "Apple Development";
 				"CODE_SIGN_IDENTITY[sdk=macosx*]" = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 5;
+				CURRENT_PROJECT_VERSION = 13;
 				DEVELOPMENT_TEAM = DQQH5H6GBD;
 				ENABLE_PREVIEWS = YES;
 				GENERATE_INFOPLIST_FILE = YES;
@@ -283,7 +284,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				MARKETING_VERSION = 1.2;
+				MARKETING_VERSION = 1.5.2;
 				PRODUCT_BUNDLE_IDENTIFIER = net.buzzert.QueueCube;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SUPPORTED_PLATFORMS = "iphoneos iphonesimulator";
@@ -304,7 +305,7 @@
 				CODE_SIGN_IDENTITY = "Apple Development";
 				"CODE_SIGN_IDENTITY[sdk=macosx*]" = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 5;
+				CURRENT_PROJECT_VERSION = 13;
 				DEVELOPMENT_TEAM = DQQH5H6GBD;
 				ENABLE_PREVIEWS = YES;
 				GENERATE_INFOPLIST_FILE = YES;
@@ -319,7 +320,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				MARKETING_VERSION = 1.2;
+				MARKETING_VERSION = 1.5.2;
 				PRODUCT_BUNDLE_IDENTIFIER = net.buzzert.QueueCube;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SUPPORTED_PLATFORMS = "iphoneos iphonesimulator";

ios/QueueCube/App/Info.plist

@@ -6,6 +6,8 @@
 	<array>
 		<string>_queuecube._tcp.</string>
 	</array>
+	<key>ITSAppUsesNonExemptEncryption</key>
+	<false/>
 	<key>NSLocalNetworkUsageDescription</key>
 	<string>QueueCube needs access to your local network to discover nearby jukebox servers.</string>
 	<key>NSAppTransportSecurity</key>

ios/QueueCube/Backend/API.swift

@@ -16,9 +16,19 @@ struct MediaItem: Codable
     let current: Bool?
     let playing: Bool?
     let metadata: Metadata?
+    let playbackError: String?
     
     var displayTitle: String {
-        metadata?.title ?? title ?? filename ?? "item \(id)"
+        metadata?.title ?? title ?? displayFilename ?? "item \(id)"
+    }
+    
+    private var displayFilename: String? {
+        guard let filename else { return nil }
+        if let url = URL(string: filename) {
+            return url.lastPathComponent
+        }
+        
+        return filename
     }
     
     // MARK: - Types
@@ -52,6 +62,9 @@ struct NowPlayingInfo: Codable
     let playingItem: MediaItem?
     let isPaused: Bool
     let volume: Int
+    let timePosition: Double?
+    let duration: Double?
+    let seekable: Bool?
 }
 
 actor API
@@ -163,6 +176,13 @@ actor API
             .post()
     }
 
+    public func seek(to time: Double) async throws {
+        try await request()
+            .path("/player/seek")
+            .body([ "time" : time ])
+            .post()
+    }
+    
     public func search(query: String) async throws -> FetchResult<[SearchResultItem]> {
         try await request()
             .pathString("/search?q=\(query.uriEncoded())")
@@ -234,8 +254,6 @@ actor API
     private static func notifyError(_ error: any Swift.Error, continuation: AsyncStream<StreamEvent>.Continuation) {
         print("Websocket Error: \(error)")
 
-        let nsError = error as NSError
-
         // Always notify observers of WebSocket errors so reconnection can happen
         // The UI layer can decide whether to show the error to the user
         continuation.yield(.error(.websocketError(error)))
@@ -247,10 +265,19 @@ actor API
     
     // MARK: - Types
     
-    enum Error: Swift.Error
+    enum Error: Swift.Error, LocalizedError
     {
         case apiNotConfigured
         case websocketError(Swift.Error)
+
+        var errorDescription: String? {
+            switch self {
+            case .apiNotConfigured:
+                "No server is configured."
+            case .websocketError(let error):
+                error.localizedDescription
+            }
+        }
     }
     
     enum StreamEvent {
@@ -273,6 +300,7 @@ actor API
             case favoritesUpdate     = "favorites_update"
             case metadataUpdate      = "metadata_update"
             case mpdUpdate           = "mpd_update"
+            case playbackError       = "playback_error"
             
             // Private UI events
             case receivedWebsocketPong

ios/QueueCube/Backend/Utilities.swift

@@ -50,8 +50,9 @@ struct RequestBuilder
     }
     
     public func build() -> URLRequest {
-        var request = URLRequest(url: self.url)
+        var request = URLRequest(url: self.url, cachePolicy: .reloadIgnoringLocalCacheData)
         request.httpMethod = self.httpMethod.rawValue
+        request.setValue("no-cache", forHTTPHeaderField: "Cache-Control")
         if let body {
             request.setValue("application/json", forHTTPHeaderField: "Content-Type")
             request.httpBody = body
@@ -61,8 +62,7 @@ struct RequestBuilder
     }
     
     public func json<T: Decodable>() async throws -> T {
-        let urlRequest = self.build()
-        let (data, _) = try await URLSession.shared.data(for: urlRequest)
+        let data = try await responseData()
         return try JSONDecoder().decode(T.self, from: data)
     }
     
@@ -71,13 +71,24 @@ struct RequestBuilder
     }
     
     public func execute() async throws {
-        let urlRequest = self.build()
-        let (data, response) = try await URLSession.shared.data(for: urlRequest)
-        if let httpResponse = response as? HTTPURLResponse {
-            if httpResponse.statusCode != 200 {
-                print("POST error \(httpResponse.statusCode): \(String(data: data, encoding: .utf8)!)")
+        _ = try await responseData()
     }
+
+    private func responseData() async throws -> Data {
+        let (data, response) = try await URLSession.shared.data(for: build())
+        guard let httpResponse = response as? HTTPURLResponse else {
+            throw RequestError.invalidResponse
         }
+
+        guard (200..<300).contains(httpResponse.statusCode) else {
+            let serverError = try? JSONDecoder().decode(ServerErrorResponse.self, from: data)
+            throw RequestError.httpError(
+                statusCode: httpResponse.statusCode,
+                message: serverError?.error
+            )
+        }
+
+        return data
     }
     
     public func websocket() -> URL {
@@ -93,6 +104,28 @@ struct RequestBuilder
         case post = "POST"
         case delete = "DELETE"
     }
+
+    private struct ServerErrorResponse: Decodable {
+        let error: String?
+    }
+
+    enum RequestError: Swift.Error, LocalizedError {
+        case invalidResponse
+        case httpError(statusCode: Int, message: String?)
+
+        var errorDescription: String? {
+            switch self {
+            case .invalidResponse:
+                "The server returned an invalid response."
+            case .httpError(let statusCode, let message):
+                if let message, !message.isEmpty {
+                    "Server error (\(statusCode)): \(message)"
+                } else {
+                    "Server error (\(statusCode)): \(HTTPURLResponse.localizedString(forStatusCode: statusCode))"
+                }
+            }
+        }
+    }
 }
 
 extension Color

ios/QueueCube/Localizable/Localizable.xcstrings

@@ -104,6 +104,16 @@
         }
       }
     },
+    "DELETE" : {
+      "localizations" : {
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Delete"
+          }
+        }
+      }
+    },
     "DISCOVERED" : {
       "localizations" : {
         "en" : {
@@ -247,6 +257,16 @@
     },
     "Nothing here yet." : {
 
+    },
+    "PLAYBACK_ERROR" : {
+      "localizations" : {
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Playback Error"
+          }
+        }
+      }
     },
     "PLAYLIST" : {
       "localizations" : {
@@ -360,6 +380,16 @@
         }
       }
     },
+    "Unknown error" : {
+      "localizations" : {
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Unknown Error"
+          }
+        }
+      }
+    },
     "URL" : {
       "localizations" : {
         "en" : {

ios/QueueCube/Localizable/Strings.swift

@@ -46,4 +46,6 @@ extension LocalizedStringKey
     static let notPlaying             = LocalizedStringKey("NOT_PLAYING")
     static let url                    = LocalizedStringKey("URL")
     static let title                  = LocalizedStringKey("TITLE")
+    static let playbackError          = LocalizedStringKey("PLAYBACK_ERROR")
+    static let delete                 = LocalizedStringKey("DELETE")
 }

ios/QueueCube/Views/AddMediaView.swift

@@ -10,17 +10,25 @@ import SwiftUI
 struct AddMediaView: View
 {
     @Binding var model: ViewModel
-    @FocusState var fieldFocused: Bool
     
     var body: some View {
         NavigationStack {
             Form {
                 // Add URL
                 Section {
-                    TextField(.addAnyURL, text: $model.fieldContents)
+                    HStack {
+                        AutofocusingTextField(String(localized: "ADD_ANY_URL"), text: $model.fieldContents)
                             .autocapitalization(.none)
                             .autocorrectionDisabled()
-                        .focused($fieldFocused)
+                            .frame(minWidth: 0.0, maxWidth: .infinity)
+                        
+                        PasteButton(payloadType: String.self) { payload in
+                            guard let contents = payload.first else { return }
+                            model.fieldContents = contents
+                        }
+                        .labelStyle(.iconOnly)
+                        .fixedSize()
+                    }
                 }
                 
                 if model.supportsSearch {
@@ -35,8 +43,6 @@ struct AddMediaView: View
                     }
                 }
             }
-            .task { fieldFocused = true }
-            .onAppear { model.activeDetent = ViewModel.Detent.collapsed.value }
             .navigationTitle(.addMedia)
             .navigationBarTitleDisplayMode(.inline)
             .toolbar {
@@ -72,21 +78,6 @@ struct AddMediaView: View
         var onSearch: () -> Void    =   { }
         var supportsSearch: Bool = true
         
-        var activeDetent: PresentationDetent = Detent.collapsed.value
-        
-        enum Detent: CaseIterable
-        {
-            case collapsed
-            case expanded
-            
-            var value: PresentationDetent {
-                switch self {
-                    case .collapsed: .height(320.0)
-                    case .expanded: .large
-                }
-            }
-        }
-        
         fileprivate func addButtonTapped() {
             onAdd(fieldContents)
         }
@@ -107,11 +98,9 @@ struct SearchMediaView: View
                 Image(systemName: "magnifyingglass")
                     .foregroundColor(.secondary)
                 
-                TextField(.searchForMedia, text: $searchText)
+                AutofocusingTextField(String(localized: "SEARCH_FOR_MEDIA"), text: $searchText, onSubmit: performSearch)
                     .focused($searchFieldFocused)
-                    .onSubmit {
-                        performSearch()
-                    }
+                    .frame(minWidth: 0.0, maxWidth: .infinity)
                 
                 if !searchText.isEmpty {
                     Button {
@@ -153,7 +142,6 @@ struct SearchMediaView: View
         .navigationTitle(.searchForMedia)
         .presentationBackground(.regularMaterial)
         .onAppear {
-            model.activeDetent = AddMediaView.ViewModel.Detent.expanded.value
             searchFieldFocused = true
         }
     }

ios/QueueCube/Views/AutofocusingTextField.swift

@@ -0,0 +1,79 @@
+//
+//  AutofocusingTextField.swift
+//  QueueCube
+//
+//  Created by James Magahern on 11/15/25.
+//
+
+import SwiftUI
+import UIKit
+
+/// Stupid: it appears to be impossible to make it so SwiftUI's `.focused(_:)` modifier takes place during the
+/// presentation of a sheet, so this needs to exist just to make sure it's made first responder as soon as it moves to
+/// the view hierarchy.
+struct AutofocusingTextField: UIViewRepresentable
+{
+    let placeholder: String
+    @Binding var text: String
+    var onSubmit: () -> Void = {}
+
+    init(_ placeholder: String, text: Binding<String>, onSubmit: @escaping () -> Void = {}) {
+        self.placeholder = placeholder
+        self._text = text
+        self.onSubmit = onSubmit
+    }
+
+    func makeUIView(context: Context) -> UITextField {
+        let tf = FirstResponderTextField()
+        tf.placeholder = placeholder
+        tf.delegate = context.coordinator
+        tf.returnKeyType = .done
+        tf.setContentHuggingPriority(.defaultHigh, for: .vertical)
+        tf.setContentHuggingPriority(.defaultLow, for: .horizontal)
+        tf.setContentCompressionResistancePriority(.defaultLow, for: .horizontal)
+        tf.autocorrectionType = .no
+        tf.autocapitalizationType = .none
+        return tf
+    }
+
+    func updateUIView(_ uiView: UITextField, context: Context) {
+        if uiView.text != text {
+            uiView.text = text
+        }
+        context.coordinator.parent = self   // keep latest onSubmit/text binding
+    }
+
+    func makeCoordinator() -> Coordinator {
+        Coordinator(parent: self)
+    }
+
+    final class Coordinator: NSObject, UITextFieldDelegate {
+        var parent: AutofocusingTextField
+
+        init(parent: AutofocusingTextField) {
+            self.parent = parent
+        }
+
+        func textFieldDidChangeSelection(_ textField: UITextField) {
+            parent.text = textField.text ?? ""
+        }
+
+        func textFieldShouldReturn(_ textField: UITextField) -> Bool {
+            parent.onSubmit()
+            return true
+        }
+    }
+}
+
+final class FirstResponderTextField: UITextField {
+    override var intrinsicContentSize: CGSize {
+        var size = super.intrinsicContentSize
+        size.width = UIView.noIntrinsicMetric
+        return size
+    }
+
+    override func didMoveToSuperview() {
+        super.didMoveToSuperview()
+        becomeFirstResponder()
+    }
+}

ios/QueueCube/Views/ContentView.swift

@@ -17,6 +17,7 @@ struct ContentView: View
         MainView(model: $model)
             .task(id: websocketRestartTrigger) { await watchWebsocket() }
             .task { await refresh([.nowPlaying, .playlist, .favorites]) }
+            .task { await pollPlaybackProgress() }
             .task { await watchForSettingsChanges() }
             .onChange(of: scenePhase) { oldPhase, newPhase in
                 handleScenePhaseChange(from: oldPhase, to: newPhase)
@@ -24,15 +25,11 @@ struct ContentView: View
             .sheet(isPresented: $model.isNowPlayingSheetPresented) {
                 NowPlayingView(model: model.nowPlayingViewModel)
                     .presentationBackground(.regularMaterial)
-                    .presentationDetents([ .height(320.0) ])
+                    .presentationDetents([ .height(390.0) ])
             }
             .sheet(isPresented: $model.isAddMediaSheetPresented) {
                 AddMediaView(model: $model.addMediaViewModel)
                     .presentationBackground(.regularMaterial)
-                    .presentationDetents(
-                        Set(AddMediaView.ViewModel.Detent.allCases.map { $0.value }),
-                        selection: $model.addMediaViewModel.activeDetent
-                    )
             }
             .sheet(isPresented: $model.isEditSheetPresented) {
                 EditItemView(model: $model.editMediaViewModel)
@@ -79,6 +76,9 @@ extension ContentView
                 
                 model.nowPlayingViewModel.isPlaying = !nowPlaying.isPaused
                 model.nowPlayingViewModel.volume = Double(nowPlaying.volume) / 100.0
+                model.nowPlayingViewModel.timePosition = nowPlaying.timePosition
+                model.nowPlayingViewModel.duration = nowPlaying.duration
+                model.nowPlayingViewModel.isSeekable = nowPlaying.seekable ?? false
                 model.playlistModel.isPlaying = !nowPlaying.isPaused
                 model.favoritesModel.isPlaying = !nowPlaying.isPaused
             }
@@ -91,7 +91,8 @@ extension ContentView
                         title: mediaItem.displayTitle,
                         filename: mediaItem.filename ?? "<null>",
                         index: idx,
-                        isCurrent: mediaItem.current ?? false
+                        isCurrent: mediaItem.current ?? false,
+                        playbackError: mediaItem.playbackError
                     )
                 }
             }
@@ -104,13 +105,25 @@ extension ContentView
                         id: String(mediaItem.id),
                         title: mediaItem.displayTitle,
                         filename: mediaItem.filename ?? "<null>",
-                        isCurrent: nowPlaying.playingItem?.filename == mediaItem.filename
+                        isCurrent: nowPlaying.playingItem?.filename == mediaItem.filename,
+                        playbackError: mediaItem.playbackError
                     )
                 }
             }
         }
     }
 
+    private func pollPlaybackProgress() async {
+        while !Task.isCancelled {
+            try? await Task.sleep(for: .seconds(1.0))
+            guard !Task.isCancelled else { return }
+
+            if scenePhase == .active && model.nowPlayingViewModel.isPlaying {
+                await refresh(.nowPlaying)
+            }
+        }
+    }
+    
     private func watchWebsocket() async {
         guard let api = model.selectedServer?.api else { return }
 
@@ -121,9 +134,15 @@ extension ContentView
                         await clearConnectionErrorIfNecessary()
                         await handle(event: event)
                     case .error(let error):
+                        // Ignore if we're in the bg
+                        guard scenePhase == .active else { break }
+                    
                         // Check if this is a backgrounding error (connection abort)
-                        let nsError = error as NSError
-                        let isBackgroundingError = nsError.code == 53
+                        var isBackgroundingError = false
+                        if case let .websocketError(wsError) = error {
+                            let nsError = wsError as NSError
+                            isBackgroundingError = nsError.code == 53
+                        }
 
                         // Only show connection error to user if it's not a backgrounding error
                         if !isBackgroundingError {
@@ -158,7 +177,8 @@ extension ContentView
             
         case .websocketReconnected: fallthrough
         case .metadataUpdate: fallthrough
-        case .mpdUpdate:
+        case .mpdUpdate: fallthrough
+        case .playbackError:
             await refresh([.playlist, .nowPlaying, .favorites])
 
         case .receivedWebsocketPong:

ios/QueueCube/Views/MainView.swift

@@ -78,6 +78,14 @@ class MainViewModel
             try await api.previous()
         }
 
+        nowPlayingViewModel.onSeek = { [weak self] model, time in
+            Task {
+                await self?.withModificationsViaAPI { api in
+                    try await api.seek(to: time)
+                }
+            }
+        }
+        
         nowPlayingViewModel.onSheetDismiss = { [weak self] _ in
             self?.isNowPlayingSheetPresented = false
         }
@@ -325,18 +333,9 @@ struct ServerSelectionToolbarModifier: ViewModifier
                                 }
                             }
                         }
-                        
-                        #if false
-                        // TODO
-                        Section {
-                            Button(.addServer) {
-                                
-                            }
-                        }
-                        #endif
                     } label: {
                         Label(model.selectedServer?.displayName ?? "Servers", systemImage: "chevron.down")
-                            .labelStyle(.titleAndIcon)
+                            .labelStyle(.titleOnly)
                     }
                     .buttonBorderShape(.capsule)
                     .buttonStyle(.bordered)
@@ -420,4 +419,3 @@ extension View {
         modifier(ErrorDisplayModifier(error: error))
     }
 }
-

ios/QueueCube/Views/NowPlayingMiniView.swift

@@ -20,6 +20,7 @@ struct NowPlayingMiniView: View {
     
     var body: some View {
         let playPauseImageName = model.isPlaying ? "pause.fill" : "play.fill"
+        let containerShape = RoundedRectangle(cornerRadius: 12.0, style: .continuous)
         let tapGesture = DragGesture(minimumDistance: 0)
             .updating($tapGestureState) { _, state, _ in
                 state = true
@@ -28,6 +29,7 @@ struct NowPlayingMiniView: View {
                 onTap()
             }
 
+        VStack(spacing: 0.0) {
             HStack {
                 VStack(alignment: .leading) {
                     if let title = model.title, !title.isEmpty {
@@ -58,11 +60,19 @@ struct NowPlayingMiniView: View {
                     .padding(12.0)
             }
             .padding(EdgeInsets(top: 4.0, leading: 14.0, bottom: 4.0, trailing: 10.0))
+
+            if let progress = model.playbackProgress {
+                ProgressView(value: progress)
+                    .progressViewStyle(.linear)
+                    .tint(.accentColor)
+            }
+        }
         .background(
-            RoundedRectangle(cornerRadius: 12)
+            containerShape
                 .fill(tapGestureState ? .ultraThinMaterial : .bar)
                 .stroke(.ultraThinMaterial, lineWidth: 1.0)
         )
+        .clipShape(containerShape)
         .shadow(color: .black.opacity(0.15), radius: 14.0, y: 2.0)
         .gesture(tapGesture)
     }

ios/QueueCube/Views/NowPlayingView.swift

@@ -5,6 +5,7 @@
 //  Created by James Magahern on 3/3/25.
 //
 
+import Foundation
 import SwiftUI
 
 @Observable
@@ -14,17 +15,40 @@ class NowPlayingViewModel
     var onStop:         (NowPlayingViewModel) -> Void = { _ in }
     var onNext:         (NowPlayingViewModel) -> Void = { _ in }
     var onPrev:         (NowPlayingViewModel) -> Void = { _ in }
+    var onSeek:         (NowPlayingViewModel, Double) -> Void = { _, _ in }
     var onSheetDismiss: (NowPlayingViewModel) -> Void = { _ in }
     
     var isPlaying: Bool    = false
     var title:     String?  = ""
     var subtitle:  String?  = ""
     var volume:    Double  = 0.5
+    var timePosition: Double?
+    var duration: Double?
+    var isSeekable: Bool = false
     
     fileprivate var isSettingVolume: Bool = false
     fileprivate var settingVolume: Double = 0.0 {
         didSet { volume = settingVolume }
     }
+
+    fileprivate var isSettingPlaybackPosition: Bool = false
+    fileprivate var settingPlaybackPosition: Double = 0.0
+
+    var playbackDuration: Double? {
+        guard let duration, duration.isFinite, duration > 0 else { return nil }
+        return duration
+    }
+
+    var displayedPlaybackPosition: Double {
+        let position = isSettingPlaybackPosition ? settingPlaybackPosition : (timePosition ?? 0.0)
+        guard position.isFinite else { return 0.0 }
+        return min(max(position, 0.0), playbackDuration ?? position)
+    }
+
+    var playbackProgress: Double? {
+        guard let playbackDuration else { return nil }
+        return displayedPlaybackPosition / playbackDuration
+    }
 }
 
 struct NowPlayingView: View
@@ -41,16 +65,16 @@ struct NowPlayingView: View
                 VStack {
                     if let title = model.title {
                         Text(title)
-                            .font(.title2)
+                            .font(.title3)
                             .lineLimit(1)
                             .bold()
                     }
                     
                     if let subtitle = model.subtitle {
                         Text(subtitle)
-                            .font(.title3)
+                            .font(.subheadline)
                             .foregroundStyle(.secondary)
-                            .lineLimit(1)
+                            .lineLimit(2)
                     }
                     
                     if nothingQueued {
@@ -60,7 +84,29 @@ struct NowPlayingView: View
                     }
                 }
                 
-                Spacer(minLength: 24.0)
+                Spacer(minLength: 20.0)
+
+                if let duration = model.playbackDuration {
+                    VStack(spacing: 2.0) {
+                        Slider(
+                            value: playbackPositionBinding,
+                            in: 0.0...duration,
+                            onEditingChanged: playbackPositionEditingChanged
+                        )
+                        .disabled(!model.isSeekable || nothingQueued)
+
+                        HStack {
+                            Text(formatTime(model.displayedPlaybackPosition))
+                            Spacer()
+                            Text(formatTime(duration))
+                        }
+                        .font(.caption.monospacedDigit())
+                        .foregroundStyle(.secondary)
+                    }
+                    .padding(.horizontal, 4.0)
+
+                    Spacer(minLength: 20.0)
+                }
                 
                 VStack {
                     HStack {
@@ -124,6 +170,38 @@ struct NowPlayingView: View
         }
     }
 
+    private var playbackPositionBinding: Binding<Double> {
+        Binding(
+            get: { model.displayedPlaybackPosition },
+            set: { model.settingPlaybackPosition = $0 }
+        )
+    }
+
+    private func playbackPositionEditingChanged(_ editing: Bool) {
+        if editing {
+            model.settingPlaybackPosition = model.displayedPlaybackPosition
+            model.isSettingPlaybackPosition = true
+        } else if model.isSettingPlaybackPosition {
+            let position = model.settingPlaybackPosition
+            model.timePosition = position
+            model.isSettingPlaybackPosition = false
+            model.onSeek(model, position)
+        }
+    }
+
+    private func formatTime(_ time: Double) -> String {
+        let totalSeconds = max(Int(time), 0)
+        let hours = totalSeconds / 3_600
+        let minutes = (totalSeconds % 3_600) / 60
+        let seconds = totalSeconds % 60
+
+        if hours > 0 {
+            return String(format: "%d:%02d:%02d", hours, minutes, seconds)
+        }
+
+        return String(format: "%d:%02d", minutes, seconds)
+    }
+    
     // MARK: - Types
     
     private enum Buttons: Int, CaseIterable, Identifiable {

ios/QueueCube/Views/PlaylistView.swift

@@ -14,17 +14,19 @@ struct MediaListItem: Identifiable
     let filename: String
     let index: Int?
     let isCurrent: Bool
+    let playbackError: String?
     
     var id: String {
         _id + filename // temporary: we get duplicate ids from the server sometimes...
     }
     
-    init(id: String, title: String, filename: String, index: Int? = nil, isCurrent: Bool = false) {
+    init(id: String, title: String, filename: String, index: Int? = nil, isCurrent: Bool = false, playbackError: String? = nil) {
         self._id = id
         self.title = title
         self.filename = filename
         self.index = index
         self.isCurrent = isCurrent
+        self.playbackError = playbackError
     }
 }
 
@@ -45,6 +47,7 @@ class MediaListViewModel
     var onQueue:    (MediaListItem) -> Void = { _ in }
     var onEdit:     (MediaListItem) -> Void = { _ in }
     var onFavorite: (MediaListItem) -> Void = { _ in }
+    var onDelete:   (MediaListItem) -> Void = { _ in }
     
     init(mode: MediaListMode) {
         self.mode = mode
@@ -54,6 +57,8 @@ class MediaListViewModel
 struct MediaListView: View
 {
     @Binding var model: MediaListViewModel
+    @State private var errorAlertItem: MediaListItem? = nil
+    @State private var isShowingErrorAlert: Bool = false
 
     var body: some View {
         VStack {
@@ -70,20 +75,29 @@ struct MediaListView: View
                     let state = item.isCurrent ? (model.isPlaying ? MediaItemCell.State.playing : MediaItemCell.State.paused) : .queued
 
                     Button {
+                        if let _ = item.playbackError {
+                            errorAlertItem = item
+                            isShowingErrorAlert = true
+                        } else {
                             switch model.mode {
                             case .playlist:
                                 model.onSeek(item)
                             case .favorites:
                                 model.onPlay(item)
                             }
+                        }
                     } label: {
                         MediaItemCell(
                             title: item.title,
                             subtitle: item.filename,
-                            state: state
+                            state: state,
+                            playbackError: item.playbackError
                         )
                     }
-                    .listRowBackground((model.mode == .playlist && state != .queued) ? Color.accentColor.opacity(0.10) : nil)
+                    .listRowBackground(
+                        item.playbackError != nil ? Color.red.opacity(0.15) :
+                        (model.mode == .playlist && state != .queued ? Color.accentColor.opacity(0.10) : nil)
+                    )
                     .contextMenu {
                         Button(.copyTitle) {
                             UIPasteboard.general.string = item.title
@@ -123,6 +137,20 @@ struct MediaListView: View
                         }
                     }
                 }
+                .alert(.playbackError, isPresented: $isShowingErrorAlert, presenting: errorAlertItem) { item in
+                    Button(.cancel, role: .cancel) {
+                        errorAlertItem = nil
+                        isShowingErrorAlert = false
+                    }
+                    Button(.delete, role: .destructive) {
+                        model.items.removeAll { $0.id == item.id }
+                        model.onDelete(item)
+                        errorAlertItem = nil
+                        isShowingErrorAlert = false
+                    }
+                } message: { item in
+                    Text(item.playbackError ?? "Unknown error")
+                }
             }
         }
     }
@@ -134,26 +162,24 @@ struct MediaItemCell: View
     let title: String
     let subtitle: String
     let state: State
+    let playbackError: String?
 
     var body: some View {
-        let icon: String = switch state {
-            case .queued: "play.fill"
-            case .playing: "speaker.wave.3.fill"
-            case .paused: "speaker.fill"
-        }
-        
         HStack {
-            Image(systemName: icon)
-                .tint(Color.primary)
+            Image(systemName: iconName)
+                .tint(playbackError == nil ? Color.primary : Color.orange)
                 .frame(width: 15.0)
                 .padding(.trailing, 10.0)
             
             VStack(alignment: .leading) {
                 Text(title)
+                    .bold()
+                    .font(.subheadline)
                     .tint(.primary)
                     .lineLimit(1)
                 
                 Text(subtitle)
+                    .font(.caption)
                     .foregroundColor(.secondary)
                     .lineLimit(1)
             }
@@ -161,6 +187,19 @@ struct MediaItemCell: View
             Spacer()
         }
         .padding([.top, .bottom], 4.0)
+        .frame(minHeight: 44.0)
+    }
+    
+    private var iconName: String {
+        if playbackError != nil {
+            return "exclamationmark.triangle.fill"
+        }
+        
+        switch state {
+            case .queued:  return "play.fill"
+            case .playing: return "speaker.wave.3.fill"
+            case .paused:  return "speaker.fill"
+        }
     }
     
     // MARK: - Types
@@ -171,4 +210,3 @@ struct MediaItemCell: View
         case paused
     }
 }
-

web/backend/src/MediaPlayer.ts

@@ -30,6 +30,11 @@ interface PendingCommand {
     reject: (reason: any) => void;
 }
 
+enum ObservedProperty {
+    MediaTitle = 1,
+    Metadata = 2,
+}
+
 enum UserEvent {
     PlaylistUpdate      = "playlist_update",
     NowPlayingUpdate    = "now_playing_update",
@@ -37,6 +42,7 @@ enum UserEvent {
     FavoritesUpdate     = "favorites_update",
     MetadataUpdate      = "metadata_update",
     MPDUpdate           = "mpd_update",
+    PlaybackError       = "playback_error",
 }
 
 export interface Features {
@@ -57,6 +63,11 @@ export class MediaPlayer {
     private dataBuffer: string = '';
     private metadata: Map<string, LinkMetadata> = new Map();
     private bonjourInstance: Bonjour | null = null;
+    private playbackErrors: Map<string, string> = new Map();
+    private currentFile: string | null = null;
+    private lastLoadCandidate: string | null = null;
+    private currentMediaTitle: string | null = null;
+    private currentPlaybackMetadata: Record<string, string> = {};
 
     constructor() {
         this.socket = this.tryRespawnPlayerProcess();
@@ -106,40 +117,137 @@ export class MediaPlayer {
         }
     }
 
+    private envEnabled(name: string, defaultValue: boolean = false): boolean {
+        const value = process.env[name];
+        if (value === undefined) {
+            return defaultValue;
+        }
+
+        switch (value.trim().toLowerCase()) {
+            case "1":
+            case "true":
+            case "yes":
+            case "on":
+                return true;
+            case "":
+            case "0":
+            case "false":
+            case "no":
+            case "off":
+                return false;
+            default:
+                return defaultValue;
+        }
+    }
+
+    private addMpvEnvOption(args: string[], envName: string, optionName: string) {
+        const value = process.env[envName];
+        if (value) {
+            args.push(`${optionName}=${value}`);
+        }
+    }
+
+    private parseMpvExtraArgs(): string[] {
+        const value = process.env.MPV_EXTRA_ARGS;
+        if (!value) {
+            return [];
+        }
+
+        const args: string[] = [];
+        let current = "";
+        let quote: string | null = null;
+        let escaped = false;
+
+        for (const char of value) {
+            if (escaped) {
+                current += char;
+                escaped = false;
+            } else if (char === "\\") {
+                escaped = true;
+            } else if (quote) {
+                if (char === quote) {
+                    quote = null;
+                } else {
+                    current += char;
+                }
+            } else if (char === "\"" || char === "'") {
+                quote = char;
+            } else if (/\s/.test(char)) {
+                if (current) {
+                    args.push(current);
+                    current = "";
+                }
+            } else {
+                current += char;
+            }
+        }
+
+        if (current) {
+            args.push(current);
+        }
+
+        return args;
+    }
+
     private tryRespawnPlayerProcess(): Promise<Socket> {
         const socketFilename = Math.random().toString(36).substring(2, 10);
         const socketPath = `/tmp/mpv-${socketFilename}`;
-        const enableVideo = process.env.ENABLE_VIDEO || false;
+        const enableVideo = this.envEnabled("ENABLE_VIDEO");
+        const ytdlFormat = process.env.MPV_YTDL_FORMAT;
         const logfilePath = `/tmp/mpv-logfile.txt`;
-
-        console.log("Starting player process (video: " + (enableVideo ? "enabled" : "disabled") + ")");
-        this.playerProcess = spawn("mpv", [
+        const playerArgs = [
             "--video=" + (enableVideo ? "auto" : "no"),
-            "--fullscreen",
             "--no-terminal",
             "--idle=yes",
             "--input-ipc-server=" + socketPath,
             "--log-file=" + logfilePath,
             "--msg-level=all=v"
-        ]);
+        ];
+
+        if (this.envEnabled("MPV_FULLSCREEN", true)) {
+            playerArgs.push("--fullscreen");
+        }
+
+        this.addMpvEnvOption(playerArgs, "MPV_WAYLAND_APP_ID", "--wayland-app-id");
+        this.addMpvEnvOption(playerArgs, "MPV_TITLE", "--title");
+        this.addMpvEnvOption(playerArgs, "MPV_BORDER", "--border");
+
+        if (this.envEnabled("MPV_ONTOP")) {
+            playerArgs.push("--ontop");
+        }
+
+        if (ytdlFormat) {
+            playerArgs.push("--ytdl-format=" + ytdlFormat);
+        }
+
+        playerArgs.push(...this.parseMpvExtraArgs());
+
+        console.log("Starting player process (video: " + (enableVideo ? "enabled" : "disabled") + ")");
+        this.playerProcess = spawn("mpv", playerArgs);
 
         
         let socketReady!: (s: Socket) => void;
-        let socketPromise = new Promise<Socket>(resolve => {
+        let socketFailed!: (reason?: unknown) => void;
+        let socketPromise = new Promise<Socket>((resolve, reject) => {
             socketReady = resolve;
+            socketFailed = reject;
         });
         
         this.playerProcess.on("spawn", () => {
             console.log(`Player process spawned, opening socket @ ${socketPath}`);
-            setTimeout(() => {
-                let socket = this.connectToSocket(socketPath);
-                socketReady(socket);
-            }, 500);
+            this.connectToSocket(socketPath)
+                .then(socket => socketReady(socket))
+                .catch((error: unknown) => {
+                    console.error(`Failed to connect to mpv socket @ ${socketPath}:`, error);
+                    console.log("Continuing without mpv player...");
+                    socketFailed(error);
+                });
         });
 
-        this.playerProcess.on("error", (error) => {
+        this.playerProcess.on("error", (error: unknown) => {
             console.error("Player process error:", error);
             console.log("Continuing without mpv player...");
+            socketFailed(error);
         });
 
         return socketPromise;
@@ -150,10 +258,15 @@ export class MediaPlayer {
             .then((response) => {
                 // Enhance playlist items with metadata
                 const playlist = response.data as PlaylistItem[];
-                return playlist.map((item: PlaylistItem) => ({
+                return playlist.map((item: PlaylistItem) => {
+                    const enhancedItem = {
                         ...item,
-                    metadata: this.metadata.get(item.filename) || {}
-                }));
+                        metadata: this.metadata.get(item.filename) || {},
+                        playbackError: this.playbackErrors.get(item.filename)
+                    };
+
+                    return item.current ? this.withCurrentDynamicTitle(enhancedItem) : enhancedItem;
+                });
             });
     }
 
@@ -162,29 +275,37 @@ export class MediaPlayer {
         const currentlyPlayingSong = playlist.find((item: PlaylistItem) => item.current);
         const fetchMediaTitle = async (): Promise<string | null> => { 
             try {
-                return (await this.writeCommand("get_property", ["media-title"])).data;
+                const mediaTitle = (await this.writeCommand("get_property", ["media-title"])).data;
+                this.currentMediaTitle = typeof mediaTitle === "string" ? mediaTitle : null;
+                return this.currentMediaTitle;
             } catch (err) {
                 return null;
             }
         };
 
+        const mediaTitle = await fetchMediaTitle();
+
         if (currentlyPlayingSong !== undefined) {
+            const dynamicTitle = this.getCurrentDynamicTitle(currentlyPlayingSong);
+            if (dynamicTitle) {
+                return this.withCurrentDynamicTitle(currentlyPlayingSong, dynamicTitle);
+            }
+
             // Use media title if we don't have a title
             if (currentlyPlayingSong.title === undefined && currentlyPlayingSong.metadata?.title === undefined) {
                 return {
                     ...currentlyPlayingSong,
-                    title: await fetchMediaTitle() || currentlyPlayingSong.filename
+                    title: mediaTitle || currentlyPlayingSong.filename
                 };
             }
 
             return currentlyPlayingSong;
         } 
 
-        const mediaTitle = await fetchMediaTitle() || "";
         return {
             id: 0,
-            filename: mediaTitle,
-            title: mediaTitle
+            filename: mediaTitle || "",
+            title: mediaTitle || ""
         };
     }
 
@@ -345,18 +466,20 @@ export class MediaPlayer {
 
     public async getFeatures(): Promise<Features> {
         return {
-            video: !!process.env.ENABLE_VIDEO,
-            screenshare: !!process.env.ENABLE_SCREENSHARE,
-            browserPlayback: !!process.env.ENABLE_BROWSER_PLAYBACK
+            video: this.envEnabled("ENABLE_VIDEO"),
+            screenshare: this.envEnabled("ENABLE_SCREENSHARE"),
+            browserPlayback: this.envEnabled("ENABLE_BROWSER_PLAYBACK")
         };
     }
 
     private async loadFile(url: string, mode: string, fetchMetadata: boolean = true, options: string[] = []) {
+        this.lastLoadCandidate = url;
+        this.playbackErrors.delete(url);
         this.modify(UserEvent.PlaylistUpdate, () => this.writeCommand("loadfile", [url, mode, "-1", options.join(',')]));
 
-        if (fetchMetadata) {
+        if (fetchMetadata && this.shouldFetchLinkPreview(url)) {
             this.fetchMetadataAndNotify(url).catch(error => {
-                console.warn(`Failed to fetch metadata for ${url}:`, error);
+                console.warn(`Failed to fetch metadata for ${this.loggableUrl(url)}:`, error);
             });
         }
     }
@@ -390,7 +513,7 @@ export class MediaPlayer {
                 socket.write(commandObject + '\n');
             } catch (e: any) {
                 console.error(`Error writing to socket: ${e}. Trying to respawn.`)
-                this.tryRespawnPlayerProcess();
+                this.socket = this.tryRespawnPlayerProcess();
             }
 
             // Add timeout to prevent hanging promises
@@ -408,7 +531,7 @@ export class MediaPlayer {
 
     private async fetchMetadataAndNotify(url: string) {
         try {
-            console.log("Fetching metadata for " + url);
+            console.log("Fetching metadata for " + this.loggableUrl(url));
             const metadata = await getLinkPreview(url);
             this.metadata.set(url, {
                 title: (metadata as any)?.title,
@@ -416,7 +539,7 @@ export class MediaPlayer {
                 siteName: (metadata as any)?.siteName,
             });
 
-            console.log("Metadata fetched for " + url);
+            console.log("Metadata fetched for " + this.loggableUrl(url));
             console.log(this.metadata.get(url));
             
             // Notify clients that metadata has been updated
@@ -429,12 +552,89 @@ export class MediaPlayer {
         }
     }
 
-    private connectToSocket(path: string): Socket {
-        let socket = new Socket();
-        socket.connect(path);
-        socket.on("data", data => this.receiveData(data.toString()));
+    private shouldFetchLinkPreview(url: string): boolean {
+        try {
+            const parsed = new URL(url);
+            if (parsed.protocol === "file:") {
+                return false;
+            }
 
-        return socket;
+            if (parsed.protocol !== "http:" && parsed.protocol !== "https:") {
+                return false;
+            }
+
+            const pathname = parsed.pathname.toLowerCase();
+            if (/\.(ts|m3u8|mpd|mp4|m4v|mkv|webm|avi|mov|mpeg|mpg|mp3|aac|flac|wav|ogg|opus)$/.test(pathname)) {
+                return false;
+            }
+
+            if (/\/download\/?$/.test(pathname)) {
+                return false;
+            }
+
+            return true;
+        } catch {
+            return false;
+        }
+    }
+
+    private loggableUrl(url: string): string {
+        try {
+            const parsed = new URL(url);
+            const segments = parsed.pathname.split("/").filter(Boolean);
+            const basename = segments.length > 0 ? segments[segments.length - 1] : "";
+            return `${parsed.protocol}//${parsed.host}/${basename ? ".../" + basename : ""}${parsed.search ? "?..." : ""}`;
+        } catch {
+            return url;
+        }
+    }
+
+    private connectToSocket(path: string): Promise<Socket> {
+        const retryDelayMs = 100;
+        const maxAttempts = 50;
+
+        return new Promise((resolve, reject) => {
+            type SocketError = Error & { code?: string };
+
+            const attemptConnection = (attempt: number) => {
+                const socket = new Socket();
+
+                const onError = (error: SocketError) => {
+                    socket.removeAllListeners();
+                    socket.destroy();
+
+                    const shouldRetry = (error.code === "ENOENT" || error.code === "ECONNREFUSED") && attempt < maxAttempts;
+                    if (shouldRetry) {
+                        setTimeout(() => attemptConnection(attempt + 1), retryDelayMs);
+                        return;
+                    }
+
+                    reject(error);
+                };
+
+                socket.once("connect", () => {
+                    socket.removeListener("error", onError);
+                    socket.on("data", (data: unknown) => this.receiveData(String(data)));
+                    socket.on("error", (error: unknown) => {
+                        console.error("MPV socket error:", error);
+                    });
+                    resolve(socket);
+                    this.registerMpvObservers().catch((error: unknown) => {
+                        console.error("Failed to register mpv observers:", error);
+                    });
+                });
+
+                socket.once("error", onError);
+                socket.connect(path);
+            };
+
+            attemptConnection(1);
+        });
+    }
+
+    private async registerMpvObservers() {
+        await this.writeCommand("observe_property", [ObservedProperty.MediaTitle, "media-title"]);
+        await this.writeCommand("observe_property", [ObservedProperty.Metadata, "metadata"]);
     }
 
     private handleEvent(event: string, data: any) {
@@ -470,6 +670,29 @@ export class MediaPlayer {
                             this.pendingCommands.delete(response.request_id);
                         }
                     } else if (response.event) {
+                        if (response.event === "start-file") {
+                            // Clear any previous error for the file that is starting
+                            const file = response.file || this.lastLoadCandidate;
+                            if (file) {
+                                this.currentFile = file;
+                                this.playbackErrors.delete(file);
+                            }
+
+                            this.currentMediaTitle = null;
+                            this.currentPlaybackMetadata = {};
+                        } else if (response.event === "property-change") {
+                            this.handlePropertyChange(response);
+                        } else if (response.event === "end-file" && response.reason === "error") {
+                            const file = response.file || this.currentFile || this.lastLoadCandidate || "Unknown file";
+                            const errorMessage = response.error || response["file-error"] || "Unknown playback error";
+
+                            this.playbackErrors.set(file, errorMessage);
+                            this.handleEvent(UserEvent.PlaybackError, {
+                                filename: file,
+                                error: errorMessage
+                            });
+                        }
+
                         this.handleEvent(UserEvent.MPDUpdate, response);
                     } else {
                         console.log(response);
@@ -480,4 +703,143 @@ export class MediaPlayer {
             }
         }
     }
+
+    private handlePropertyChange(response: any) {
+        const previousTitle = this.getCurrentDynamicTitle();
+
+        if (response.id === ObservedProperty.MediaTitle || response.name === "media-title") {
+            this.currentMediaTitle = typeof response.data === "string" ? response.data : null;
+        } else if (response.id === ObservedProperty.Metadata || response.name === "metadata") {
+            this.currentPlaybackMetadata = this.normalizeMpvMetadata(response.data);
+        }
+
+        const currentTitle = this.getCurrentDynamicTitle();
+        if (currentTitle !== previousTitle) {
+            this.handleEvent(UserEvent.MetadataUpdate, {
+                url: this.currentFile,
+                title: currentTitle,
+                metadata: this.currentPlaybackMetadata
+            });
+        }
+    }
+
+    private withCurrentDynamicTitle(item: PlaylistItem, dynamicTitle: string | null = this.getCurrentDynamicTitle(item)): PlaylistItem {
+        if (!dynamicTitle) {
+            return item;
+        }
+
+        return {
+            ...item,
+            title: dynamicTitle,
+            metadata: {
+                ...item.metadata,
+                title: dynamicTitle
+            }
+        };
+    }
+
+    private getCurrentDynamicTitle(item?: PlaylistItem): string | null {
+        if (this.currentMediaTitle && !this.isFallbackMediaTitle(this.currentMediaTitle, item?.filename)) {
+            return this.currentMediaTitle.trim();
+        }
+
+        return this.extractTitleFromMpvMetadata();
+    }
+
+    private extractTitleFromMpvMetadata(): string | null {
+        const titleKeys = new Set(["title", "icy-title", "icy_title", "streamtitle", "stream-title"]);
+
+        for (const key of Object.keys(this.currentPlaybackMetadata)) {
+            const normalizedKey = key.toLowerCase();
+            if (!titleKeys.has(normalizedKey)) {
+                continue;
+            }
+
+            const title = this.parseStreamTitle(this.currentPlaybackMetadata[key]);
+            if (title) {
+                return title;
+            }
+        }
+
+        return null;
+    }
+
+    private parseStreamTitle(value: string | undefined): string | null {
+        const trimmedValue = value?.trim();
+        if (!trimmedValue) {
+            return null;
+        }
+
+        const streamTitleMatch = trimmedValue.match(/StreamTitle='([^']*)'/i);
+        return (streamTitleMatch?.[1] || trimmedValue).trim() || null;
+    }
+
+    private normalizeMpvMetadata(data: unknown): Record<string, string> {
+        if (data === null || typeof data !== "object" || Array.isArray(data)) {
+            return {};
+        }
+
+        const metadata: Record<string, string> = {};
+        const rawMetadata = data as Record<string, unknown>;
+
+        for (const key of Object.keys(rawMetadata)) {
+            const value = rawMetadata[key];
+            if (value !== null && value !== undefined) {
+                metadata[key] = String(value);
+            }
+        }
+
+        return metadata;
+    }
+
+    private isFallbackMediaTitle(title: string, filename?: string): boolean {
+        const normalizedTitle = title.trim();
+        if (!normalizedTitle) {
+            return true;
+        }
+
+        const fallbackCandidates = new Set<string>();
+        if (filename) {
+            this.addFallbackTitleCandidates(fallbackCandidates, filename);
+        }
+
+        if (this.currentFile) {
+            this.addFallbackTitleCandidates(fallbackCandidates, this.currentFile);
+        }
+
+        return fallbackCandidates.has(normalizedTitle);
+    }
+
+    private addFallbackTitleCandidates(candidates: Set<string>, value: string) {
+        candidates.add(value);
+
+        try {
+            candidates.add(decodeURIComponent(value));
+        } catch {
+            // Keep the original value if it is not URI-encoded.
+        }
+
+        try {
+            const url = new URL(value);
+            this.addPathTitleCandidates(candidates, url.pathname);
+        } catch {
+            this.addPathTitleCandidates(candidates, value);
+        }
+    }
+
+    private addPathTitleCandidates(candidates: Set<string>, path: string) {
+        const pathSegments = path.split("/").filter(Boolean);
+        const lastPathSegment = pathSegments[pathSegments.length - 1];
+        if (!lastPathSegment) {
+            return;
+        }
+
+        candidates.add(lastPathSegment);
+
+        try {
+            candidates.add(decodeURIComponent(lastPathSegment));
+        } catch {
+            // Keep the original segment if it is not URI-encoded.
+        }
+    }
 } 

web/backend/src/server.ts

@@ -31,6 +31,12 @@ const app = express();
 app.use(express.json());
 expressWs(app);
 
+const frontendDistPath = [
+    path.join(__dirname, "../dist/frontend"),
+    path.join(__dirname, "../../frontend/dist"),
+].find((candidate) => fs.existsSync(path.join(candidate, "index.html")))
+    || path.join(__dirname, "../dist/frontend");
+
 const apiRouter = express.Router();
 const mediaPlayer = new MediaPlayer();
 
@@ -300,14 +306,14 @@ apiRouter.get("/features", withErrorHandling(async (req, res) => {
 }));
 
 // Serve static files for React app (after building)
-app.use(express.static(path.join(__dirname, "../dist/frontend")));
+app.use(express.static(frontendDistPath));
 
 // Mount API routes under /api
 app.use("/api", apiRouter);
 
 // Serve React app for all other routes (client-side routing)
 app.get("*", (req, res) => {
-    res.sendFile(path.join(__dirname, "../dist/frontend/index.html"));
+    res.sendFile(path.join(frontendDistPath, "index.html"));
 });
 
 const port = process.env.PORT || 3000;

web/backend/src/types.ts

@@ -29,4 +29,5 @@ export interface PlaylistItem {
     playing?: boolean;
     current?: boolean;
     metadata?: LinkMetadata;
+    playbackError?: string;
 }

web/flake.lock

@@ -20,11 +20,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1740828860,
-        "narHash": "sha256-cjbHI+zUzK5CPsQZqMhE3npTyYFt9tJ3+ohcfaOF/WM=",
+        "lastModified": 1779560665,
+        "narHash": "sha256-tpyBcxPpcQb8ukyNF7DoCwfSY3VPsxHoYwj00Cayv5o=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "303bd8071377433a2d8f76e684ec773d70c5b642",
+        "rev": "64c08a7ca051951c8eae34e3e3cb1e202fe36786",
         "type": "github"
       },
       "original": {

web/flake.nix

@@ -8,97 +8,7 @@
 
   outputs = { self, nixpkgs, flake-utils }:
     let
-      # Define the NixOS module for the systemd service
-      nixosModule = { config, lib, pkgs, ... }:
-        let
-          cfg = config.services.queuecube;
-        in {
-          options.services.queuecube = {
-            enable = lib.mkEnableOption "QueueCube media player service";
-            
-            port = lib.mkOption {
-              type = lib.types.port;
-              default = 3000;
-              description = "Port on which QueueCube will listen";
-            };
-
-            enable_video = lib.mkOption {
-              type = lib.types.bool;
-              default = false;
-              description = "Enable video playback";
-            };
-
-            store_path = lib.mkOption {
-              type = lib.types.str;
-              default = "/var/tmp/queuecube";
-              description = "Path to the store for QueueCube";
-            };
-
-            invidious = lib.mkOption {
-              type = lib.types.submodule {
-                options = {
-                  enable = lib.mkOption {
-                    type = lib.types.bool;
-                    default = false;
-                    description = "Enable Invidious";
-                  };
-
-                  url = lib.mkOption {
-                    type = lib.types.str;
-                    default = "http://invidious.nor";
-                    description = "URL of the Invidious instance to use";
-                  };
-                };
-              };
-
-              default = {
-                enable = false;
-                url = "http://invidious.nor";
-              };
-            };
-            
-            user = lib.mkOption {
-              type = lib.types.str;
-              description = "User account under which QueueCube runs (required)";
-            };
-          };
-          
-          config = lib.mkIf cfg.enable {
-            users.users.${cfg.user} = {
-              packages = [ self.packages.${pkgs.system}.queuecube ];
-            };
-            
-            systemd.user.services.queuecube = {
-              description = "QueueCube media player service";
-              wantedBy = [ "default.target" ];
-              after = [ "pipewire.service" "pipewire-pulse.service" ];
-              
-              serviceConfig = {
-                ExecStart = "${self.packages.${pkgs.system}.queuecube}/bin/queuecube";
-                Restart = "on-failure";
-                RestartSec = 5;
-                
-                # Allow access to X11 for mpv
-                Environment = [ "DISPLAY=:0" ];
-              };
-              
-              environment = {
-                PORT = toString cfg.port;
-                ENABLE_VIDEO = if cfg.enable_video then "1" else "0";
-                USE_INVIDIOUS = if cfg.invidious.enable then "1" else "0";
-                INVIDIOUS_BASE_URL = cfg.invidious.url;
-                STORE_PATH = cfg.store_path;
-              };
-            };
-          };
-        };
-    in
-    flake-utils.lib.eachDefaultSystem (system:
-      let
-        pkgs = nixpkgs.legacyPackages.${system};
-        
-        # Define the package using buildNpmPackage
-        queuecube = pkgs.buildNpmPackage {
+      mkQueuecube = pkgs: pkgs.buildNpmPackage {
         pname = "queuecube";
         version = "0.1.0";
         
@@ -163,6 +73,136 @@
         };
       };
 
+      # Define the NixOS module for the systemd service
+      nixosModule = { config, lib, pkgs, ... }:
+        let
+          cfg = config.services.queuecube;
+          package = mkQueuecube pkgs;
+        in {
+          options.services.queuecube = {
+            enable = lib.mkEnableOption "QueueCube media player service";
+            
+            port = lib.mkOption {
+              type = lib.types.port;
+              default = 3000;
+              description = "Port on which QueueCube will listen";
+            };
+
+            enable_video = lib.mkOption {
+              type = lib.types.bool;
+              default = false;
+              description = "Enable video playback";
+            };
+            
+            enable_screenshare = lib.mkOption {
+              type = lib.types.bool;
+              default = false;
+              description = "Enable screensharing";
+            };
+
+            mpv_ytdl_format = lib.mkOption {
+              type = lib.types.nullOr lib.types.str;
+              default = "best";
+              description = "yt-dlp format selector passed to mpv. Set to null to use mpv's default format selection.";
+            };
+
+            store_path = lib.mkOption {
+              type = lib.types.str;
+              default = "/var/tmp/queuecube";
+              description = "Path to the store for QueueCube";
+            };
+
+            invidious = lib.mkOption {
+              type = lib.types.submodule {
+                options = {
+                  enable = lib.mkOption {
+                    type = lib.types.bool;
+                    default = false;
+                    description = "Enable Invidious";
+                  };
+
+                  url = lib.mkOption {
+                    type = lib.types.str;
+                    default = "http://invidious.nor";
+                    description = "URL of the Invidious instance to use";
+                  };
+                };
+              };
+
+              default = {
+                enable = false;
+                url = "http://invidious.nor";
+              };
+            };
+            
+            user = lib.mkOption {
+              type = lib.types.str;
+              description = "User account under which QueueCube runs (required)";
+            };
+          };
+          
+          config = lib.mkIf cfg.enable {
+            users.users.${cfg.user} = {
+              packages = [ package ];
+            };
+            
+            systemd.user.services.queuecube = {
+              description = "QueueCube media player service";
+              wantedBy = [ "default.target" ];
+              after = [ "pipewire.service" "pipewire-pulse.service" ];
+
+              serviceConfig = {
+                ExecStart = "${package}/bin/queuecube";
+                Restart = "on-failure";
+                RestartSec = 5;
+
+                # Remove all resource limits for mpv to function properly
+                LimitNOFILE = "infinity";          # No limit on file descriptors
+                LimitMEMLOCK = "infinity";         # No limit on locked memory (for real-time audio)
+                LimitNPROC = "infinity";           # No limit on number of processes
+                LimitAS = "infinity";              # No limit on address space
+                LimitRSS = "infinity";             # No limit on resident set size
+                LimitCORE = "infinity";            # Allow core dumps for debugging
+                LimitDATA = "infinity";            # No limit on data segment
+                LimitSTACK = "infinity";           # No limit on stack size
+                LimitCPU = "infinity";             # No limit on CPU time
+                LimitRTPRIO = "99";                # Allow real-time priority
+                LimitRTTIME = "infinity";          # No limit on real-time scheduling
+
+                # Nice level for better performance
+                Nice = "-10";
+
+                # Allow access to necessary devices and features
+                PrivateDevices = false;
+                ProtectHome = false;
+                ProtectSystem = false;
+                NoNewPrivileges = false;
+
+                # Environment for X11 and runtime directories
+                Environment = [
+                  "DISPLAY=:0"
+                ];
+              };
+
+              environment = {
+                PORT = toString cfg.port;
+                ENABLE_VIDEO = if cfg.enable_video then "1" else "0";
+                ENABLE_SCREENSHARE = if cfg.enable_screenshare then "1" else "0";
+                USE_INVIDIOUS = if cfg.invidious.enable then "1" else "0";
+                INVIDIOUS_BASE_URL = cfg.invidious.url;
+                STORE_PATH = cfg.store_path;
+              } // lib.optionalAttrs (cfg.mpv_ytdl_format != null) {
+                MPV_YTDL_FORMAT = cfg.mpv_ytdl_format;
+              };
+            };
+          };
+        };
+    in
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = nixpkgs.legacyPackages.${system};
+        queuecube = mkQueuecube pkgs;
+        
       in {
         packages = {
           default = queuecube;
@@ -177,8 +217,7 @@
         # Development environment
         devShells.default = pkgs.mkShell {
           buildInputs = with pkgs; [
-            nodejs_20
-            nodePackages.npm
+            nodejs
             mpv
             yt-dlp
             pulseaudio

web/frontend/src/api/player.tsx

@@ -28,6 +28,7 @@ export interface PlaylistItem {
   id: number;
   playing: boolean | null;
   metadata?: Metadata;
+  playbackError?: string;
 }
 
 export const getDisplayTitle = (item: PlaylistItem): string => {
@@ -62,6 +63,7 @@ export enum ServerEvent {
   FavoritesUpdate     = "favorites_update",
   MetadataUpdate      = "metadata_update",
   MPDUpdate           = "mpd_update",
+  PlaybackError       = "playback_error",
   ScreenShare         = "screen_share",
 }
 

web/frontend/src/components/App.tsx

@@ -199,6 +199,7 @@ const App: React.FC = () => {
       case ServerEvent.NowPlayingUpdate:
       case ServerEvent.MetadataUpdate:
       case ServerEvent.MPDUpdate:
+      case ServerEvent.PlaybackError:
         fetchPlaylist();
         fetchNowPlaying();
         break;

web/frontend/src/components/SongRow.tsx

@@ -1,6 +1,6 @@
 import classNames from 'classnames';
 import React, { useState, useRef, useEffect, ReactNode } from 'react';
-import { FaPlay, FaVolumeUp, FaVolumeOff } from 'react-icons/fa';
+import { FaPlay, FaVolumeUp, FaVolumeOff, FaExclamationTriangle } from 'react-icons/fa';
 import { getDisplayTitle, PlaylistItem } from '../api/player';
 
 export enum PlayState {
@@ -19,6 +19,7 @@ export interface SongRowProps {
 
 const SongRow: React.FC<SongRowProps> = ({ song, auxControl, playState, onDelete, onPlay }) => {
   const [showDeleteConfirm, setShowDeleteConfirm] = useState(false);
+  const [showErrorDetails, setShowErrorDetails] = useState(false);
   const buttonRef = useRef<HTMLButtonElement>(null);
   
   useEffect(() => {
@@ -38,6 +39,7 @@ const SongRow: React.FC<SongRowProps> = ({ song, auxControl, playState, onDelete
   }, [showDeleteConfirm]);
   
   const displayTitle = getDisplayTitle(song);
+  const hasError = !!song.playbackError;
   
   return (
     <div className={classNames(
@@ -46,16 +48,46 @@ const SongRow: React.FC<SongRowProps> = ({ song, auxControl, playState, onDelete
       "bg-black/30": playState === PlayState.NotPlaying,
     })}>
       <div className="flex flex-row gap-2">
+        <div className="relative">
           <button 
-          className="text-white/40 hover:text-white transition-colors px-3 py-1 rounded"
-          onClick={onPlay}
+            className={classNames(
+              "transition-colors px-3 py-1 rounded", 
+              hasError ? "text-amber-300 hover:text-amber-100" : "text-white/40 hover:text-white"
+            )}
+            onClick={() => {
+              if (hasError) {
+                setShowErrorDetails((prev) => !prev);
+              } else {
+                onPlay();
+              }
+            }}
+            onMouseEnter={() => {
+              if (hasError) {
+                setShowErrorDetails(true);
+              }
+            }}
+            onMouseLeave={() => {
+              if (hasError) {
+                setShowErrorDetails(false);
+              }
+            }}
+            title={hasError ? song.playbackError : undefined}
           >
             {
+              hasError ? <FaExclamationTriangle size={12} /> : 
               playState === PlayState.Playing ? <FaVolumeUp size={12} /> 
               : playState === PlayState.Paused ? <FaVolumeOff size={12} /> 
               : <FaPlay size={12} />
             }
           </button>
+
+          {hasError && showErrorDetails && (
+            <div className="absolute z-10 top-full left-0 mt-1 w-64 p-2 text-xs text-white bg-red-600/90 rounded shadow-lg">
+              <div className="font-semibold mb-1">Playback error</div>
+              <div className="break-words">{song.playbackError}</div>
+            </div>
+          )}
+        </div>
       </div>
       
       <div className="flex-grow min-w-0">