Quick overview of places which can be used for placing code, which you need to call during application startup. It covers
GenServer.handle_continue/2. Importantly it also covers situations when something goes wrong with your code.
Erlang Solutions published their list of the top Erlang/BEAM/Elixir resources of this year.
Squarespace shares insight into user experience optimization process. How they setup and evaluate their experiments.
Paper advocates use of energy based models (EBMs) to improve on ability of generative models to address current downstream discriminative problem. Also suggest reading reddit thread, where author chimed in and replied to some of the questions.
eBPF is basically in-kernel virtual machine which allows running your special purpose application to run. eBPF was initially intended for packet filtering applications, but became really powerful tool for observing the operating system. It is event-based, so you can subscribe to only events which are interesting for your use-case. Check LWN intro article for more details. eBPF is definitely production ready for quite some time, Facebook and Netflix being heavy users. Also Brendan Gregg of Netflix just published a book about eBPF (eagerly waiting its delivery from Amazon :)).
Interesting projects to check