Search, Watch, Download YouTube videos (and as audio) on your Pinephone / Librem 5 Provides Video and Search history. No ability to "subscribe" to channels, or have a feed for it yet.
Note: these are illustrative instructions. If you're a developer or a package maintainer, they can be useful to you. If not, just install the flatpak.
sudo apt-get install python-requests
git clone https://source.puri.sm/todd/Stream
cd Stream
mkdir build
cd build
meson ..
meson configure -Dprefix=$PWD/testdir # use this line if you want to avoid installing system wide
ninja
(sudo) ninja install
sudo pacman -S python-requests python-gobject
git clone https://source.puri.sm/todd/Stream
cd Stream
mkdir build
cd build
meson ..
meson configure -Dprefix=$PWD/testdir # use this line if you want to avoid installing system wide
ninja
(sudo) ninja install