I was looking to use both. Actually. I discovered FASTER when looking to port durable functions to php (it’s called durable-php if you want to google it, though the implementation is nothing like it) and the netherite engine uses faster.

It’s perfect for my use-case, more so now than when I originally researched it as a possibility. Back then, I didn’t even have threading solved for php. Now that’s all a solved problem (threads ftw) and I’m refactoring log storage now to better support things like faster.