Torben Hoffmann

@LeHoff

Erlang Priest, Elixir Alchemist and Lego Minstorms hacker.

Denmark
Joined June 2011
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  1. Retweeted
    Jun 12

    How to do CPR in emergency , important not just medics anyone can do it and save lives. Please spread this.

    31 replies 2,548 retweets 3,938 likes
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  2. Jun 9

    “Top lessons learned from working with a 10x developer” by Jeffrey Bakker This is worth reading.

    2 retweets 1 like
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  3. Jun 7

    From the parking lot on the way to get the Covid vaccine you pass this… you can't make these things up.

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  4. May 27

    My timer utility for Erlang/Elixir has been used enough in the wild to warrant a v1.0.0 stamp. Ping me if you want to discuss it.

    2 retweets 9 likes
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  5. May 18

    Just break down your code so it reads like prose - your future self will thank your present self soon ;-)

    3 likes
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  6. May 18

    For those of you using or OTP 24 has just made performant to extract functions: if a function is only used once it so automatically inlined. Add that to the fact that calling a named function is faster than using an anonymous function and the excuses are gone!

    1 reply 4 likes
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  7. May 17

    This explains exactly why I hate comments in code: And yes, I know naming is hard, but the alternative is worse!

    1 reply 2 retweets 2 likes
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  8. May 17

    This is spot on!

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  9. Retweeted
    May 14

    ⚗️ Elixir Tip #99 - Working with nested maps ⚗️ Dealing with nested maps can sometimes be challenging. Luckily the Elixir standard lib provides some very useful out of the box functions just for this purpose!

    2 replies 21 retweets 78 likes
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  10. Retweeted
    May 11

    Today Is the day I tell my son that I’m dying from cancer. It’s reached a point where he has to hear it from me. Let all my tears flow now so that I can be brave this afternoon. Let me howl with grief now so that I can comfort him.

    14,809 replies 35,882 retweets 518,232 likes
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  11. May 8

    “Misconceptions About the Philosophy Behind OOP” by Erik Engheim

    1 reply 10 retweets 18 likes
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  12. May 5

    “I Chose Mac For Reasons That Had Nothing To Do With Apple or Mac” by I have almost the same history: once I got an iMac I got time to experiment instead of wasting time on keeping Windows and Linux up to date. It works for me, YMMV.

    4 likes
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  13. Retweeted
    May 2

    I'm really enjoying the new Elixir Livebooks, but running a firmware update step-by-step is one of my favorites so far. Here's a capture from where the latest update was downloaded from GitHub releases and is being validated.

    Capture of firmware_update.livemd running on Nerves Livebook on a Raspberry Pi Zero W
    1 reply 26 retweets 136 likes
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  14. Retweeted
    Apr 30

    Today I've seen separate compilation, an Idris implementation of Dhall, a lovely LSP demo, pretty syntax highlighting, faster typechecking/some runtime optimisations, and online documentation (and probably things I forgot). Thanks everyone! If only we could do this every week!

    I've been bad at promoting this, but we're doing lots of Idris hacking this week... Looking forward to seeing what comes of it!
    Show this thread
    8 retweets 72 likes
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  15. Retweeted
    Apr 25

    A friend of mine randomly showed up with a belated birthday gift! Apparently they've been spending months trying to track down this little piece of Erlang history for me!

    A copy of "Strand: New Concepts in Parallel Programming"
    5 replies 5 retweets 49 likes
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  16. Apr 26

    I couldn't agree more!

    6 retweets 4 likes
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  17. Retweeted
    Apr 25

    I excitedly read through this thread yesterday, as it was posted, and now I'm going through it again as I'm waking up, because it's just so damn good. I want to live in a world where all my tools are written with these techniques in mind.

    A terminal session showing progressive compilation of a simple regular expression, going through phases with finite automata, to an IR, and then to VM style instructions. These are output as diagrams, and the VM instructions are annotated with arrows showing the control flow for basic blocks. This indicates looping, and each block of instructions forms a node in a graph.
    A simple AST overlaid with a symbol table alongside, showing some example content. It's from a unix shell, parsing a conditional expression. Nodes are present for logical AND and OR operators, and the symbol table contains variables for each scope.
    🧵 Make yours and everybody else's lives slightly less terrible by having all your programs print out their internal stuff as pictures; ✨ a thread ✨
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    3 replies 1 retweet 29 likes
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  18. Retweeted
    Apr 23

    Today I tried to use a local Python Jupyter Notebook and here are the training times: 0.6s - Elixir Livebook 2.7s - Python 3.9.4 12s - Jupyter Notebook 23s - Google Colab local runtime 1m50s - Google Colab free hosted runtime

    I was playing around with Google Colab and Elixir Livebook today. The former required 1m50s to train my model. The latter required 0.6s to train the same model. That was 172x faster! [1/3]
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    5 replies 73 retweets 219 likes
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  19. Apr 16

    Excited to be networking from home on ! Use my invite link to skip the waitlist and meet interesting people over video:

    1 reply 1 like
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  20. Apr 12

    “These Modern Programming Languages Will Make You Suffer” by Nice overview and ⁦⁩ comes out quite well!

    1 reply
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