[Touche]

> How well maintained and diverse are the GambitScheme libraries?

The library situation in Gambit is.... very bad. Last time I tried it (~6 months ago) you had to compile from a different branch to get Blackhole to work.

Chicken Scheme has a much better ecosystem. It also compiles to C and is fast. Gambit is known for its speed so I won't say Chicken is as fast but it is "fast enough" and the ecosystem is worth the difference IMO.

[klibertp]

Seconded. I recently evaluated quite a few Scheme implementations for a very simple web scraping project and found Chicken to be both fast and great with its packages. chicken-install feels almost like pip or npm and it works really well. The packages are many and most of them are nicely documented. If you need a Scheme with compile-to-C capability and a bunch of batteries included then Chicken Scheme is the way to go.