mruby build server written in mod_mruby.
All you have to do is to post your own build_config.rb to mruby-build-server. Then, you can get compiled binary (libmruby.a) without CRuby or C compiler on your local PC.
./setup.sh
curl -d "`cat /path/to/build_confg.rb`" http://hostname:8080/mruby-build
You can run this on local dev environment. You need to prepare docker
.