Add daily email for 2025-02-01

Don't use global dependencies

source/_daily_emails/2025-02-01.md

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+---
+title: Don't use global dependencies
+date: 2025-02-01
+permalink: daily/2025/02/01/global-dependencies
+tags:
+  - software-development
+cta: ~
+snippet: |
+  Don't use global system-wide versions of your dependencies, use the ones that are defined in your project.
+---
+
+I recently watched a YouTube video of someone working on their software.
+
+Everything was working locally, but things were breaking in their CI pipeline.
+
+The issue was their CI environment had different versions of the software than the one they were using locally.
+
+To get the same results locally and in CI, you need your dependencies to be the same.
+
+The same versions of languages, such as PHP and nodejs, and packages like PHPStan, PHPUnit, Jest or eslint.
+
+Dependencies should be installed with a package manager that generates a lock file like composer.lock or package-lock.json, so use these versions instead of installing versions globally that may be different.
+
+For PHP or nodejs, I'd suggest using Docker or Nix, [which has its own lock file][0], to make your environment as reproducible and consistent as possible.
+
+[0]: {{site.url}}/daily/2025/01/20/reproducible