Android

I was able to install bard on Android via the excellent Termux emulator. Not everything works: the tray system app does not work, the clipboard option only partially works (only plain text is copied). However I could obtain a decent workflow via:

bard --no-tray --clipboard

and using the external player when controls are needed (nice key-driven in-terminal space for pause etc).

For paywalled articles, I ended up opening them in Firefox, accessing the Reading mode (excellent, though sometimes the icon is hidden in the URL bar), selecting all text, copying, and running the above command (for free articles just copy paste the URL). This requires the Termux API pkg install termux-api.