Download Nettle

FOR THIS COMPUTER

Windows

Windows 10 or 11, 64-bit

Download installerNettle-win-Setup.exe Portable, no installNettle-win-Portable.zip

Run the installer. It installs for your user only, no admin needed.
If Windows says "Windows protected your PC" (Nettle isn't code-signed yet), click More info → Run anyway.
Later versions install from Settings → Updates.

FOR THIS COMPUTER

Linux

AppImage: Ubuntu, Debian, Fedora, Arch…

Download AppImageNettle.AppImage

Make it executable: Properties → Allow executing as program, or chmod +x Nettle.AppImage.
Double-click it. Nettle offers to add itself to your applications menu.
Later versions install from Settings → Updates.

FOR THIS DEVICE

Android TV

Google TV, onn 4K, Chromecast, Shield… (Android 9+)

Download APKNettle-AndroidTV.apk

Code for the
Downloader app

On the TV, install Downloader (by AFTVnews) from the Play Store.
Allow it to install apps: Settings → Apps → Security & restrictions → Unknown sources, turn on Downloader.
In Downloader, enter this address:
github.com/devall96/Nettle/releases/latest/download/Nettle-AndroidTV.apk, then Install.
Later versions install from Settings → Updates in Nettle.

These are the only files you need. The release page on GitHub also lists files ending in .nupkg, .json and RELEASES: Nettle's built-in updater reads those, so you can ignore them.

Nettle's Home screen: a spotlight banner with Continue Watching underneath

Original quality, alwaysDirect play of the original file. 4K, HDR10, Dolby Vision, Atmos and DTS go out as they are.
Live TV like cableA full guide, channel surfing and a tuning screen, with NostalgiaTV.
Private by designNo analytics or crash reporting. Nettle only connects to the servers you set up.
Same app everywhereWindows, Linux and Android TV share one version and the same features.