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it's CRUSH.md https://github.com/charmbracelet/crush/blob/main/CRUSH.md


Sharing with HN: a starter app to understand Cloudflare Containers (introduced in June 2025 as beta)

The official docs were vague and examples pretty bare, so I made a inspector/debugger app to understand the reverse proxied container env that you cannot ssh to.

This could unlock cost effective Python services for you.


curl https://storage.googleapis.com/panels-api/data/20240916/medi... | jq -r '.data[].dhd' | grep imgix.net | while read -r line; do out=$(echo $line | sed 's/?.*//g' | sed 's/[^.a-zA-Z0-9]/_/g'); curl -s -o $out $line; done


I was hoping someone would reply with a bash one-liner so I didn't get nerd sniped into doing it myself, thank you


not working for me:(


pro tip: if you're dwelling in apartments and can't spare a bedroom or closet, use a "grow tent" ($150-$250 on Amazon) to isolate your workspace from toddlers and spouses

- big enough for standing desks - most noise isolation headphones will clean up your audio for meetings - add whatever solid color backdrop or virtual backgrounds to clean up your video - built-in air circulation to/from windows


Best part of reading this is coming away having learned the existence of units the CLI. How did I spend 20 years on the shell and not have needed or discovered this?


One thing I got bitten by was the handling of Fahrenheit/Celsius, because it's a non-linear conversion between the two. When you ask to convert `10 degC` to `degF` you get 18, which is the delta of ºF corresponding to increment of 10ºC. To get the absolute temperature, you have to ask to convert `tempC(10)` to `tempF` which is 50, as expected.

https://www.gnu.org/software/units/


"Non-linear" threw me off for a second - I almost never see the mathematically correct definition of linear in computer science spaces. For anyone wondering, Celsius to Fahrenheit is an affine transform, technically not linear, because you have to add an offset, not just multiply.


On the other hand, an equation of the form y = a x + b is a linear equation. If you have Celsius and want Fahrenheit you accomplish that by applying a linear equation (F = 1.8 C + 32), so I certainly can't fault people for saying that the transformation they are doing is linear.

I wonder what people would say for something using an equation of the form y = a x^2 + b x + c to transform something? I can't say that I've heard anyone talk of quadratic transformations. On the other hand, I can't think of ever transforming anything with a quadratic equation, so never had the need t speak of it.

(Also, he called it a linear conversion, not a linear transformation).


FWIW, units on macOS (not GNU) handles conversion of `10 degC` to `degF` correctly, although it dates back to 1993.

It seems that GNU units at some point added support for several non-linear units, which may have prompted them to rethink their syntax.


Be aware that currencies are stuck with rates from several years ago and don’t update.


Running `sudo units_cur` does the trick for me.

  $ units
  Currency exchange rates from FloatRates (USD base) on 2020-05-12
  $ sudo units_cur
  $ units
  Currency exchange rates from FloatRates (USD base) on 2020-07-09
(GNU units, packed by Debian)


In case anyone else needs this:

  # systemctl edit units-currency-update.service
  
  [Unit]
  Description=Update units(1) currency rates
  
  [Service]
  Type=oneshot
  Nice=19
  ExecStart=/usr/bin/units_cur
  
  # systemctl edit units-currency-update.timer
  
  [Unit]
  Description=Update units(1) currency rates
  
  [Timer]
  OnCalendar=daily
  AccuracySec=3h
  Persistent=true
  
  [Install]
  WantedBy=timers.target
  
  # systemctl daemon-reload
  # systemctl enable units-currency-update.timer


Looking at the source of the default configuration (cat /usr/share/misc/units.lib), I believe it only defines conversions for currencies that are pegged to another one (mainly to EUR or USD).

    You have: 10 franc
    You want: dollar
    conformability error
     1.5244902 euro
     1 usdollar
    You have: 10 franc
    You want: euro
     * 1.5244902
     / 0.655957


I'm tempted to say it shouldn't even attempt to support currency conversion, as constantly in flux as it is.


  $ units
  Currency exchange rates from FloatRates (USD base) on 2019-06-05


I wonder if this could be addressed with periodic updates.


I didn’t look too deep into it, my understanding was that the source it uses to update itself has been taken offline. There are workarounds involving data massaging and a cron but honestly that’s a lot more work than typing “1000 chf to usd” into ddg and getting the converted amount. But if you know something I don’t, maybe you could share for everyone’s benefit?


I also discovered `units` because of this tale... but I was lucky enough to read it beck in the early days (pre 2005 at least).


'units' was new to me too. The version I have on my Mac wouldn't accept 'millilightseconds' but it would take 'milli-c-seconds' - presumably the units.lib database is a little different from one in the original article.


Though sadly millilightseconds is not supported on macOS, at least, so you have to go:

    3 millilightyears / 365 / 86400
Of course, round 365 to whatever average number of days you believe in :-)


units

You have: mph

You want: kph

        * 1.609344

        / 0.62137119


I have

  alias units='units --verbose
in my shell rc which makes the output much more understandable:

  You have: mph
  You want: kph
          mph = 1.609344 kph
          mph = (1 / 0.62137119) kph


I find the reciprocal thing useless, so I have units='units --compact --one-line', which gives just the number you want.


Me too! so awesome


the Talk Python series is actually a great way for Python programmers to discover authors and libraries you wouldn't organically come across on HN or GitHub browsing. I highly recommend it to intermediate python programmers to expand their knowledge scope.


simple templates of movie editing where I am just adding a title, clipping videos at start/end times, etc

for example:

- movie-title title1.mp4 "my awesome movie" --style=lower-left

- movie-cat title1.mp4 clip1.mp4 clip2.mp4 clip3.mp4 --transition=blur --output movie1.mp4

- movie-upload youtube movie1.mp4

Edit: formatting


Check ffmpeg


If you want to build the web with Python, IMO the emphasis should be bringing Python to the web. I think a more promising project is http://pypyjs.org/ - a Python runtime in your browser powered by asm.js

Listen to this podcast where the author describes the project: https://talkpython.fm/episodes/show/32/pypy.js-pypy-python-i...


I think it's certainly an interesting project, but the goal of compiling to JS today is to be able to access the DOM and interface easily with existing JS infrastructure.


I want to also vote up Cactus despite the lack of attention paid to it lately. IMO it's very well designed and deserves to be worked on by a wider community.

It's open sourced via BSD 3 clause: https://github.com/koenbok/cactus

I especially liked the "deploy to s3" feature, IMO the cheapest way to run a highly scalable static site today.

Alternatively, a "deploy to GitHub page" would be neat as well.

I would work on extending Cactus if it was a bigger problem personally, but so far what's released fits my needs already.


I've gone down that path before of storing encrypted secrets in SimpleDB. Unfortunately, encrypting string values will bloat the length of your strings, bumping against the 1024 value limit of SimpleDB: http://docs.aws.amazon.com/AmazonSimpleDB/latest/DeveloperGu...


Didn't think about that. There are, of course, ugly workarounds, but I just asked about SimpleDB not because it's fun to use, but because of its low cost in this scenario.


I forgot SimpleDB had per-value limits. Good catch


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