This is a demo rails app that reproduces an issue with the Split.io Ruby SDK.
Using ruby version 2.6.9 and bundler 2.3.6.
To reproduce the problem, add .env file with split API key
SPLIT_IO_API_KEY=<api key>
And then run bundle install and bundle exec puma. The server will block on startup for 10 seconds and then exit. The Split.io client log will be in logfile.log.