FYI, I've had good luck using this tool with FanFicFare (with a small it bit of effort):
https://github.com/yoori/flare-bypasser/
I don't think I've seen it mentioned here.
It's a newer tool to bypass Cloudflare and implements the same API as Flaresolver, so it's mostly a drop in replacement.
Except, I think I remember the current released build was broken, so I had to do a
docker compose up --build to build from source.
And... it seems that
postData was broken in their Flaresolver API, so you'll want this patch:
https://github.com/yoori/flare-bypas...ent-2571522399
I hope those issues go away in an updated release in the future. I've found it works much better than Flaresolverr.