[ezekiel68]

Funny you should ask that... about 6 years ago, Mozilla released an event-handling library written in go named Heka. It made use of go's built-in goroutines and channels and what made it really cool was that it had an embedded lua interpreter so people could update lua scripts in their event processing systems to alter the behavior (such as reformatting dates, etc) without needing to re-compile the solution. It got pretty popular and you can still find YouTube tutorials on using it to this day.

Unfortunately, according to one of the lead developers, the system couldn't keep up with Mozilla's throughput and reliability requirements due to limitations of go's built-in features.[0] They announced they would re-write a new solution in c ("Hindsight") and they basically left an entire community of users high and dry due to not being able to salvage the go-based project, since it relied so heavily on the built-in features.

[0] https://heka.mozilla.narkive.com/9heQ11hz/state-and-future-o...