Injecting tracing the hot way

I mostly program in Elixir. So tracing is an overloaded term. This post relates to both of them and how we can use BEAM and Erlang fundamentals to do wild things for observability that wouldn&rsquo;t be practical in most runtimes. Let&rsquo;s load some hot code. First is a set of (experimental) updates I&rsquo;ve done to my &ldquo;Erlang tracing&rdquo; library Entrace. Erlang&rsquo;s concept of…