Zapier alternative for FREE!

I'm building an alternative for Zapier called Do10X: https://github.com/dotenx/dotenx The service will be launched with limited integrations in a few days. If you're interested to be among the early users please let me know here so I can give you free access. It'd be great specially if you have experience using Zapier or its alternatives. Also during this stage if there is any particular integration/automation you like to see in the application we can discuss and include it in the upcoming releases.