Add fork documentation and rewrite README

- README: watch-first feature overview, install + libmpv requirement,
  fork attribution.
- docs/UPSTREAM.md: upstream merge procedure, expected conflict zones,
  list of SageTube-only modules.
- docs/BUILDING.md: per-OS libmpv install, managed-binary locations,
  playback reliability notes, warning that inherited GitHub release
  workflows download appimagetool/ffmpeg without checksum verification.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

README.md

@@ -1,12 +1,45 @@
 # SageTube
 
-A watch-first YouTube client for the desktop — search, browse channels and playlists, follow subscriptions, and stream videos in an embedded mpv player, with full yt-dlp download capability inherited from [YTSage](https://github.com/oop7/YTSage).
+A watch-first YouTube client for the desktop. Search, browse channels and
+playlists, follow subscriptions, and stream videos in an embedded mpv player —
+with the full yt-dlp download feature set inherited from
+[YTSage](https://github.com/oop7/YTSage).
 
-SageTube is a fork of [YTSage](https://github.com/oop7/YTSage) by [oop7](https://github.com/oop7) (MIT). The original YTSage documentation is preserved at [docs/UPSTREAM_README.md](docs/UPSTREAM_README.md).
+## Features
 
-## Status
+**Watching**
+- 📺 Embedded mpv player (Wayland/X11/Windows/macOS) with quality selector,
+  speed, volume, subtitles, fullscreen
+- 🔍 In-app YouTube search with thumbnail card grid
+- 📂 Channel browsing (Videos / Shorts / Live) and playlist views
+- 🔔 Local subscriptions — no Google account needed — with an aggregated feed;
+  optional real account feed via browser cookies
+- ⏯️ Watch history with resume positions and a persistent play queue
+- ⬇️ One click from any video card into the downloader
 
-Under active development. See the upstream README for the downloader feature set, which remains fully functional.
+**Downloading** (from YTSage)
+- Format table, audio extraction, subtitles, SponsorBlock, chapters,
+  playlists, trimming, speed limits, proxies, cookies, custom yt-dlp commands,
+  download history — see the [upstream README](docs/UPSTREAM_README.md)
+
+## Install
+
+```bash
+pip install .
+sagetube
+```
+
+Requires **libmpv** for playback (Arch: `pacman -S mpv`) — see
+[docs/BUILDING.md](docs/BUILDING.md). Without it the app works as a downloader.
+
+## Fork notes
+
+SageTube is a fork of [YTSage](https://github.com/oop7/YTSage) by
+[oop7](https://github.com/oop7) (MIT). The internal package keeps the
+`ytsage` name so upstream fixes remain mergeable — see
+[docs/UPSTREAM.md](docs/UPSTREAM.md). The fork also fixes a number of
+upstream bugs (unsafe partial-file cleanup, unverified binary updates,
+thread-safety issues, PATH corruption on Windows — see the git log).
 
 ## License
 

docs/BUILDING.md

@@ -0,0 +1,48 @@
+# Building & running SageTube
+
+## Requirements
+
+- Python >= 3.10
+- **libmpv** (system library; `python-mpv` binds to it at runtime)
+  - Arch: `sudo pacman -S mpv`
+  - Debian/Ubuntu: `sudo apt install libmpv2`
+  - Fedora: `sudo dnf install mpv-libs`
+  - macOS: `brew install mpv`
+  - Windows: place `libmpv-2.dll` next to the executable (builds from
+    https://github.com/shinchiro/mpv-winbuild-cmake/releases), or install mpv
+    and add it to PATH
+- ffmpeg (for download merging; the app can auto-install it)
+
+Without libmpv the app still runs — the Watch tab shows an install hint and
+search/browse/download work normally.
+
+## Run from source
+
+```bash
+python -m venv .venv && source .venv/bin/activate
+pip install -e .
+sagetube
+```
+
+On first start the app downloads its own SHA256-verified `yt-dlp` binary and
+the Deno runtime (yt-dlp's JS challenge solver) into the SageTube data dir:
+
+- Linux: `~/.local/share/SageTube/bin/`
+- macOS: `~/Library/Application Support/SageTube/bin/`
+- Windows: `%LOCALAPPDATA%\SageTube\bin\`
+
+## Notes on YouTube playback reliability
+
+Playback resolves streams through mpv's `ytdl_hook` using the managed yt-dlp.
+YouTube's CDN intermittently serves stalled streams to non-browser clients;
+the player retries automatically (twice, after 25 s of no playback). Keeping
+yt-dlp updated (built-in updater, stable or nightly channel) is the long-term
+fix channel for extractor breakage.
+
+## Release workflows
+
+The `.github/workflows/` files are inherited from upstream YTSage and target
+GitHub runners; they do not run on Gitea. If you set up Gitea Actions, note
+that the upstream Linux/Windows workflows download appimagetool and a bundled
+ffmpeg **without checksum verification** — add hash checks before reusing
+them for release artifacts.

docs/UPSTREAM.md

@@ -0,0 +1,38 @@
+# Tracking upstream YTSage
+
+SageTube keeps the full git history of [YTSage](https://github.com/oop7/YTSage)
+and the internal `ytsage` package name so upstream improvements can be merged.
+
+## Syncing
+
+```bash
+git fetch upstream            # upstream = https://github.com/oop7/YTSage.git
+git merge upstream/main
+```
+
+## Expected conflict zones
+
+Most SageTube features live in **new files** and merge cleanly. Conflicts are
+likely only in:
+
+| File | Reason |
+|---|---|
+| `ytsage/gui/ytsage_gui_main.py` | tab-shell edit in `init_ui` (`_setup_main_tabs`), closeEvent hook |
+| `ytsage/gui/ytsage_gui_analysis.py` | delegates subprocess execution to `YtdlpClient` |
+| `ytsage/utils/ytsage_constants.py` | SageTube data dirs, PATH prepend for managed binaries |
+| `ytsage/utils/ytsage_config_manager.py` | atomic save, defaults merge, player/feed/advanced keys |
+| `pyproject.toml` | name, version, deps (python-mpv), URLs |
+| `ytsage/languages/en.json` | added sections: player, cards, main_tabs, search, watch, browse, feed |
+
+Bug fixes made in this fork (see git log between the merge commit and the
+first feature commit) may also conflict if upstream fixes them differently —
+prefer whichever version is stricter about verification and thread safety.
+
+## SageTube-only modules (never conflict)
+
+- `ytsage/core/ytsage_client.py` — shared yt-dlp JSON invocation layer
+- `ytsage/core/ytsage_mpv.py` — libmpv probe
+- `ytsage/gui/ytsage_gui_player.py` — embedded mpv player
+- `ytsage/gui/ytsage_gui_watch.py` / `_search.py` / `_browse.py` / `_feed.py` — tabs
+- `ytsage/gui/ytsage_gui_router.py` / `_cards.py` — navigation + video cards
+- `ytsage/utils/ytsage_library_manager.py` — subscriptions/history/queue DB

pyproject.toml

@@ -3,11 +3,12 @@ requires = ["setuptools"]
 build-backend = "setuptools.build_meta"
 
 [project]
-name = "ytsage"
+name = "sagetube"
-version = "5.2.0"
+version = "0.1.0"
-description = "Modern YouTube downloader with a clean PySide6 interface."
+description = "Watch-first YouTube client with embedded mpv playback and yt-dlp downloading. Fork of YTSage."
 authors = [
-    { name = "oop7", email = "oop7_support@proton.me" },
+    { name = "Houmeres", email = "admin@ecoposta.sk" },
+    { name = "oop7 (YTSage upstream)", email = "oop7_support@proton.me" },
 ]
 dependencies = [
     "PySide6>=6.10.1",
@@ -48,12 +49,13 @@ keywords = ["youtube", "downloader", "video", "audio", "PySide6", "yt-dlp", "GUI
 
 
 [project.scripts]
+sagetube = "ytsage.main:main"
 ytsage = "ytsage.main:main"
 
 [project.urls]
-Homepage = "https://github.com/oop7/YTSage"
+Homepage = "https://git.houmeres.sk/Houmeres/SageTube"
-Bug-Tracker = "https://github.com/oop7/YTSage/issues"
+Bug-Tracker = "https://git.houmeres.sk/Houmeres/SageTube/issues"
-Reddit = "https://www.reddit.com/r/NO-N_A_M_E/"
+Upstream = "https://github.com/oop7/YTSage"
 
 [tool.setuptools]
 include-package-data = true

ytsage/__init__.py

@@ -4,5 +4,5 @@ YTSage - YouTube Video Downloader
 A modern, user-friendly YouTube video downloader built with PySide6.
 """
 
-__version__ = "5.2.0"
+__version__ = "0.1.0"
 __author__ = "oop7"

ytsage/gui/ytsage_gui_dialogs/ytsage_dialogs_base.py

@@ -226,24 +226,27 @@ class AboutDialog(QDialog):
         info_layout = QHBoxLayout()
         info_layout.setSpacing(15)
 
-        author_link = '<a href="https://github.com/oop7/" style="color: #c90000; text-decoration: none;">oop7</a>'
+        author_link = '<a href="https://git.houmeres.sk/Houmeres" style="color: #c90000; text-decoration: none;">Houmeres</a>'
         author_label = QLabel(
             f"{_('about.author', author=author_link)}"
         )
         author_label.setOpenExternalLinks(True)
         info_layout.addWidget(author_label)
 
-        repo_link = '<a href="https://github.com/oop7/YTSage/" style="color: #c90000; text-decoration: none;">YTSage</a>'
+        repo_link = '<a href="https://git.houmeres.sk/Houmeres/SageTube" style="color: #c90000; text-decoration: none;">SageTube</a>'
         repo_label = QLabel(
             f"{_('about.github', repo=repo_link)}"
         )
         repo_label.setOpenExternalLinks(True)
         info_layout.addWidget(repo_label)
 
-        sponsor_link = '<a href="https://github.com/sponsors/oop7" style="color: #c90000; text-decoration: none;">❤️ Sponsor</a>'
+        upstream_link = (
-        sponsor_label = QLabel(sponsor_link)
+            '<a href="https://github.com/oop7/YTSage" style="color: #c90000; text-decoration: none;">'
-        sponsor_label.setOpenExternalLinks(True)
+            "Based on YTSage by oop7</a>"
-        info_layout.addWidget(sponsor_label)
+        )
+        upstream_label = QLabel(upstream_link)
+        upstream_label.setOpenExternalLinks(True)
+        info_layout.addWidget(upstream_label)
 
         # Center the info layout
         info_container = QHBoxLayout()

ytsage/languages/en.json

@@ -22,7 +22,7 @@
     "restart_notice": "Language change will take effect after restarting the application."
   },
   "app": {
-    "title": "YTSage",
+    "title": "SageTube",
     "version": "v{version}",
     "ready": "Ready"
   },
@@ -240,9 +240,9 @@
     "update_in_progress_message": "yt-dlp is currently updating. Please wait a moment."
   },
   "about": {
-    "title": "About YTSage",
+    "title": "About SageTube",
     "version": "Version {version}",
-    "description": "Modern YouTube downloader with clean PySide6 interface.",
+    "description": "Watch-first YouTube client with embedded mpv playback and yt-dlp downloading. Fork of YTSage by oop7 (MIT).",
     "author": "By: {author}",
     "github": "GitHub: {repo}",
     "system_info": "System Information",

ytsage/main.py

@@ -25,6 +25,8 @@ def main():
     try:
         logger.info("Starting YTSage application")
         app = QApplication(sys.argv)
+        app.setApplicationName("SageTube")
+        app.setDesktopFileName("sagetube")
 
         window = YTSageApp()  # Instantiate the main application class
         window.show()

ytsage/utils/ytsage_config_manager.py

@@ -86,7 +86,7 @@ class ConfigManager:
         "geo_proxy_url": None,
         "auto_update_ytdlp": True,
         "auto_update_frequency": "daily",
-        "check_app_updates": True,
+        "check_app_updates": False,  # fork updates come from Gitea, not the upstream PyPI package
         "check_beta_updates": False,
         "last_update_check": 0,
         "concurrent_fragments": 1,

ytsage/utils/ytsage_constants.py

@@ -91,11 +91,11 @@ if OS_NAME == "Windows":
 
     # Always use user data directory for app data, logs, config, and binaries
     # Even when frozen, we don't want to create these folders next to the executable
-    APP_DIR: Path = Path(os.environ.get("LOCALAPPDATA", USER_HOME_DIR / "AppData" / "Local")) / "YTSage"
+    APP_DIR: Path = Path(os.environ.get("LOCALAPPDATA", USER_HOME_DIR / "AppData" / "Local")) / "SageTube"
     APP_BIN_DIR: Path = APP_DIR / "bin"
     APP_DATA_DIR: Path = APP_DIR / "data"
     APP_LOG_DIR: Path = APP_DIR / "logs"
-    APP_CONFIG_FILE: Path = APP_DATA_DIR / "ytsage_config.json"
+    APP_CONFIG_FILE: Path = APP_DATA_DIR / "sagetube_config.json"
     APP_HISTORY_FILE: Path = APP_DATA_DIR / "ytsage_history.json"
     APP_THUMBNAILS_DIR: Path = APP_DATA_DIR / "thumbnails"
 
@@ -110,11 +110,11 @@ elif OS_NAME == "Darwin":  # macOS
 
     # Always use user data directory for app data, logs, config, and binaries
     # Even when frozen, we don't want to create these folders next to the executable
-    APP_DIR: Path = USER_HOME_DIR / "Library" / "Application Support" / "YTSage"
+    APP_DIR: Path = USER_HOME_DIR / "Library" / "Application Support" / "SageTube"
     APP_BIN_DIR: Path = APP_DIR / "bin"
     APP_DATA_DIR: Path = APP_DIR / "data"
     APP_LOG_DIR: Path = APP_DIR / "logs"
-    APP_CONFIG_FILE: Path = APP_DATA_DIR / "ytsage_config.json"
+    APP_CONFIG_FILE: Path = APP_DATA_DIR / "sagetube_config.json"
     APP_HISTORY_FILE: Path = APP_DATA_DIR / "ytsage_history.json"
     APP_THUMBNAILS_DIR: Path = APP_DATA_DIR / "thumbnails"
 
@@ -129,11 +129,11 @@ else:  # Linux and other UNIX-like
 
     # Always use user data directory for app data, logs, config, and binaries
     # Even when frozen, we don't want to create these folders next to the executable
-    APP_DIR: Path = USER_HOME_DIR / ".local" / "share" / "YTSage"
+    APP_DIR: Path = USER_HOME_DIR / ".local" / "share" / "SageTube"
     APP_BIN_DIR: Path = APP_DIR / "bin"
     APP_DATA_DIR: Path = APP_DIR / "data"
     APP_LOG_DIR: Path = APP_DIR / "logs"
-    APP_CONFIG_FILE: Path = APP_DATA_DIR / "ytsage_config.json"
+    APP_CONFIG_FILE: Path = APP_DATA_DIR / "sagetube_config.json"
     APP_HISTORY_FILE: Path = APP_DATA_DIR / "ytsage_history.json"
     APP_THUMBNAILS_DIR: Path = APP_DATA_DIR / "thumbnails"