If anyone here is interested in working on YAMLScript with me please reach out. I made a https://github.com/orgs/yaml/projects/5 to start listing the things that I need the most help with. Also I started a https://github.com/yaml/yamlscript/wiki whose home page points to various YS resources.

YAMLScript has binary releases now (for 2 OS/Arch platforms). You can install the ys CLI with

curl  | PREFIX=~/local bash