iqui27/nuvio-native-legacy v1.5.4 on GitHub

Native Nuvio for Samsung joins the regular release — from 2018 TVs to today — plus Trakt scrobbling and more reliable addons on LG.

Added

Native Samsung app (.tpk), opt-in: the same native app as on LG, now for Samsung Tizen 4.0 to 9. Faster than the web version. The .wgt stays available.
Tizen 2018–2020 (4.0/5.0/5.5): the native app now signs in and plays (#180). Installs with a normal certificate, no Partner needed.
Tizen 8/9: the native app now opens from the TV's app menu, not only from Apps2Samsung (#170).
Trakt "Now Watching" (#179): Nuvio now tells Trakt when you start and pause, so progress and watched history sync like the official app.
Visual effects setting (Samsung native): Settings › Advanced. Automatic lowers effects on slower TVs; you can pick Full or Light.
Self-update (Samsung native): from this version on, the native app can update itself without reinstalling.

Trailers with sound (Samsung native): fullscreen trailers try IMDb first, so Apple TV and Netflix movie trailers have audio (#178).
Trailer zoom (Samsung native): zoom modes now work, with no black bars at the start (#178).
Other apps' audio underneath (Samsung native): Samsung TV Plus no longer keeps playing behind Nuvio.
Card trailer continues on the details page (Samsung native), now with sound.
Addons not showing until reload (#182): a slow addon (e.g. AIOStreams) is asked once more before the list appears.
Next-episode card (#177): the thumbnail respects "blur unwatched episodes".
Rebuffering indicator: a loading ring shows when playback stalls to buffer (LG).
HDR label (Samsung native): shows the source's HDR type; never Dolby Vision (Samsung TVs don't support it).

Samsung, which file? Web version for Tizen 5.5+: NuvioTV-1.5.4-tizen.wgt. Native (preview): Tizen 4.0–5.5 → NuvioTpk40, 6.0 → NuvioTpk60, 6.5–7 → NuvioTpk65, 8–9 → NuvioTpk. Install with Apps2Samsung; packages are unsigned on purpose.
The libnuvio-*.so files are for the native app's self-update — you don't need to download them.
LG with the Homebrew Channel: add https://github.com/iqui27/nuvio-native-legacy/releases/latest/download/repo.json as a repository to get updates from the channel.