FirefoxOS sort of lives on through the KaiOS fork, unfortunately many devices come locked which prevents from installing homebrew apps. I have a rooted Nokia 27

FirefoxOS sort of lives on through the KaiOS fork, unfortunately many devices come locked which prevents from installing homebrew apps. I have a rooted Nokia 2720 Flip, and while the hardware is abysmal (KaiOS is targeted at emerging markets) you can get quite a bit of functionality out of it (including openstreetmap, podcast/music players, rss readers, google-authenticator-compatible TOTP etc).