if any organizations, such as your local emergency services, continue to only post some types of updates on Twitter and assume this makes them publicly accessible, you should complain about that information no longer being public. (any logged‐out web view of an account only shows algorithmically‐suggested Tweets now, so there’s no way to view the newest Tweets without a working account.)
there are still some operational Nitter instances powered by actual manually‐created user account tokens, but these can handle very few requests by their nature and cannot scale to demand, so i can’t recommend relying on them for anything. it also appears there’s no central code repository still being worked on after this existential setback? so these smaller instances would also be entirely “on their own” in that sense, making them even more fragile than the project as a whole already was.