Lately I’ve been having some weird problems with CircleCI and some of my OSS projects (most recently CIDER) - the SSH checkout keys that CircleCI uses to fetch the code from GitHub started to disap...

Today I’ve noticed that Oh My Zsh provides one really useful command (implemented as a shell function) - take. I guess with a name like this it’s not immediately obvious what the command does, but ...

I’ve been using Zsh on-and-off for a very long time (15+ years), but I still occasionally learn something new about it.1 Yesterday I was setting up oh-my-zsh on a new computer and I’ve noticed they...

Many programming languages have a function for combining the elements of multiple collections (e.g. arrays or lists) together. Typically this function is named zip. Here’s an example from Haskell: ...

You never get a second chance to make a first impression. Lately I’ve been learning OCaml and I thought it might be a good time to share a few initial impressions, while they are still fresh. Of ...

One thing that was a bit weird for me in OCaml early on was how to introduce multiple let bindings (e.g. in the body of a function definition). Think something like this in Clojure: (let [a 1 ...

Update (2026): I’ve written an updated version of this article that covers the modern OCaml tooling stack – neocaml + ocaml-eglot instead of tuareg + merlin-mode. I’ve promised you articles about ...

Live as if you were to die tomorrow. Learn as if you were to live forever. – Mahatma Gandhi For as long as I’ve been into programming I’ve been learning some new programming languages on the s...

If you’re into programming puzzles you probably know that there’s a whole class of problems about doing something (e.g. some calculations) with the digits of a number. This means you need to break ...

Many programming languages have a function for combining the elements of multiple collections (e.g. arrays or lists) together. Typically this function is named zip. Here’s an example from Haskell: ...