Been using it for years on grapheneos. Runs afaik via https only, super lightweight clientside

I have been using Hauk for ages. Not the most advanced or modern, but works like a charm! https://github.com/bilde2910/Hauk

Seems like the worst part is not too bad, all things considered. All you need is half an hour patience with the fizzy drinks ;) Have to say, hate cycling on the cobbles, but love the look of them in the cities! Also, cobbles generally force cars to slow down indeed.