There's also Fast Endpoints[1], which Kind of the best of both worlds, minimal-API and REPR.
thank for the pointer !
The syntax seems cool and comprehensive, i like it.
I made some test and like its name, it is very fast : performances are closed to SimpleW, just a little bellow. But its memory footprint is the half, so i'm impressed. I will check the code, sure there are interesting things into.
Edit: Of course, Aspire definitely looks interesting for more complex needs.