Check out Gerbil Scheme. It has a lot of great features included in its standard library[0], and is currently the fastest Scheme around[1]. The only downside is

Check out Gerbil Scheme. It has a lot of great features included in its standard library[0], and is currently the fastest Scheme around[1]. The only downside is no Windows support at the moment. [0] https://cons.io/ https://cons.io/ [1] https://ecraven.github.io/r7rs-benchmarks/ https://ecraven.github.io/r7rs-benchmarks/