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Today I ran into this interactive prompt on ubuntu while installing node and npm, and I do not want to manually configure this interactively every time I run an install, moreso in docker I do not have the interactive terminal to do so.

Configuring tzdata
------------------

Please select the geographic area in which you live. Subsequent configuration questions will narrow this down by presenting a list of cities, representing the time zones in which they are located.

  1. Africa  2. America  3. Antarctica  4. Arctic  5. Asia  6. Atlantic  7. Australia  8. Europe  9. Indian  10. Pacific  11. Etc  12. Legacy
Geographic area:

Why tzdata #

Checking aptitude why tzdata it shows that the chain goes back through npm.

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

The solution, configure tzdata #

export TZ="America/Chicago"
export DEBIAN_FRONTEND=noninteractive
apt update
apt install tzdata -y
ln -fs /usr/share/zoneinfo/$TZ /etc/localtime
dpkg-reconfigure -f noninteractive tzdata

This is required, because apt installing tzdata will trigger the

https://www.youtube.com/watch?v=03KsS09YS4E&t=610s

Today I learned about the basic calculator, bc. At the very end of this video prime uses it to add numbers in vim.

REPL #

You can start a calculator repl at the command line, by running bc.

Vim #

Since bc supports standard unix pipes you can easily pipe data from vim into bc and back out using !!bc. All you need is a string of math on the line you want to calculate, go to normal mode and run !!bc to get the answer.

Traditionally I will open my system calculator or ipython to do something like this.

To keep the equation and the result in the same line you can send the equation to stderr and the result to stdout using tee.

:.!tee >(cat >&2) | bc

I’ve been back to putting some images on my blog lately and thinking about making them a bit thinner through the use of aspect ratio for simplicity. I’m leaning pretty heavy on tailwindcss these days due to some weird quirks of markdown-it-attrs I cannot have slashes in classes from markdown so I made a .cinematic class to achieve this.

.cinematic {
  @apply aspect-[2.39/1];
}

Example