https://yn-labs.com/en/tags/zellij/Recent content in Zellij on 万屋猫LabsHugoenSat, 04 Jul 2026 10:00:00 +0900https://yn-labs.com/en/posts/dotfiles-ci-idempotency/Sat, 04 Jul 2026 10:00:00 +0900https://yn-labs.com/en/posts/dotfiles-ci-idempotency/<h2 id="the-day-my-dev-environment-stops-being-reproducible">The Day My Dev Environment Stops Being Reproducible</h2> <p>I keep my development environment in a single script. Shell configuration, prompt, terminal multiplexer, language runtimes, and cloud CLIs all get installed in one shot with <code>./setup_env.sh</code>. It ended up at 1,358 lines. On a new machine, or after reinstalling the OS, the same environment comes right back. It&rsquo;s convenient.</p> <p>Convenient, but one worry remained. Now <strong>I have no way to notice when that script itself breaks</strong>. If I accidentally write something that only works on one of the two operating systems, I won&rsquo;t find out until the next time I touch that machine. If the routine that appends to a config file corrupts an existing <code>.zshrc</code>, I only notice after the accident has already happened. By consolidating manual work into a script, I&rsquo;ve now entrusted the entire reproducibility of my environment to that one script.</p>