At Wikipedia, we built an efficient sampling profiler for PHP, and use it to instrument live requests. The trace logs and flame graphs are powered by a simple setup that involves only free open-source software, and runs at low infrastructure cost. I’d like to demonstrate that profiling doesn’t have to be expensive,...

Continuing from last time, here are a dozen more tricks Emacs has up its sleeve that it’s shy about telling you. We continue to chip away at Emacs' discoverability problem, one demo at a time. Same rules as before: No packages, stock Emacs only No steep learning curves. Learn each feature in under five minutes or...

It's faster to deploy from CodePen to Netlify than it is to read this blog post.