aptitude why
============

Today I ran into an interesting question, why am I being asked to configure tzdata while installing npm. Turns out that the cli has a why command that very...

Date: February 11, 2025

Today I ran into an interesting question, why am I being asked to configure
tzdata while installing npm. Turns out that the `aptitude` cli has a why
command that very handily nails down why you have something installed on a
debian based system.

## Install aptitude

``` bash
apt install aptitude
```

## Why tzdata

Now we can query why we need tzdata and see the full chain with the root
package being `npm`.

``` bash
root@47685221fb82:/# aptitude why tzdata
i npm Depends node-gyp
i A node-gyp Depends gyp (>= 0.1+20200513gitcaa6002)
i A gyp Depends python3:any
i A python3 Provides python3:any
i A python3 Depends python3.12 (>= 3.12.3-0~)
i A python3.12 Depends tzdata
```