https://choosealicense.com/licenses/mit/
I see licence MIT on the site, but I do not see any license on your GitLab repository.

How to apply this license (common)
Create a text file (typically named LICENSE or LICENSE.txt) in the root of your source code and copy the text of the license into the file. Replace [year] with the current year and [fullname] with the name (or names) of the copyright holders.

Also, are you sure you need “ipairs” instead of "pairs" in events?

Thanks, added.

Mind clarifying "events"? Do you mean the signals loop?

Must admit I have no idea if that's guaranteed to be an array or a map. Docs for get_merged_signals are non-specific :\

Unlike standard lua factorios built-in lua interpreter guarantees deterministic order of pairs(), so there's no real reason to use ipairs. If you need performance a for i=1,x loop is faster. And if you don't know if something is sparse or not you just print it with print(serpent.block(x)) and have a look at it :p.