Writing

Who needs all those paid certificate providers while we have such a brilliant project as Let's Encrypt?

Books were hard to get when I was a kid. They were expensive and, on top of that, in short supply. Many people owned no books at all; some copied them by hand. But there were always plenty of books in our family, and it was shocking to me to see a room with no books in it.

Reducer composition is still the core Redux idea, even though modern Redux code usually starts with Redux Toolkit, configureStore, and createSlice.

I have never been really good at writing. I won some rewards in my childhood. I wrote some shitty verses in my youth. None of those achievements really were significant for the universe around me. It was all like a silly child play with the symbols I barely know.

A practical guide to application configuration: keep deploy-specific values out of code, parse and validate configuration at startup, make precedence explicit, and treat secrets as secrets.

PHP CLI can read environment variables directly, but PHP-FPM intentionally clears worker environments by default. Here is how to pass only the variables your application actually needs.

Linux can report “No space left on device” even when df -h shows plenty of free disk space. One common cause is inode exhaustion: the filesystem can still store bytes, but it cannot create more files.

SSI can still be a useful server-side composition seam for legacy migrations, but today it should be treated as a narrow tool with clear boundaries, fallbacks, observability, and trusted upstreams.

Suppose a cart request succeeds and its event fires, but the badge stays wrong. Tracing the change shows where an event bus leaves timing and state for us to organise.

Virtual worlds can be very different. Some require a sharp eye, some quick reactions, and some a powerful graphics card.