Preventing and dealing with career-ending injuries (Confoo 2022)

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Our plan for today 1. What's a RSI? 2. My Journey with RSI 3. Prevention 4. Reverse engineering my pain 5. Technical optimizations

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⚠ DISCLAIMER

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What is a RSI?

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Repetitive Stress Injury

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Repetitive Strain Injury

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Cumulative Trauma Disorder (Ok, that one really messes up with our RSI mnemonic)

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Who's at risk?

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Musicians

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Athletes

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! "

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Labour Workers

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Sedentary People

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My journey with RSI

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My hobbies... ‣ Rock climbing ! ‣ Programming ⌨ ‣ Play the guitar # ‣ Gaming $

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I can't ride a bike, apparently

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How to prevent RSIs?

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Workstation Ergonomics

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Work hygiene ‣ take regular breaks ⏰ ‣ change your focus " ‣ drink plenty of water # ‣ pomodoro $

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There's no way you can touch-type on this with straight wrists

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DVORAK COLEMAK WORKMAN IRST oh my...

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"Using can be a conversation starter. You’ll get lots of nerd cred from the right people but plenty more weird looks from everyone else."

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How to learn a new keyboard layout? ‣ Accept that you'll be horribly slow (at ﬁrst) ‣ Set aside time for short, regular practice sessions ‣ Never look down at the keyboard ‣ Go slow, aim for a high-accuracy

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Ambient vs Deliberate practice "I've driven my car everyday for years, how come I'm not as good as a professional race car driver yet?"

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Deliberate practice ‣ Learn where the keys are1 ‣ Practice the most common words ‣ Practice the most common bigrams (th, he, in, er, an, ...)2 ‣ Practice typing text3 ‣ Delete whole words when making mistakes (⌥ + ⌫) 3 monkeytype.com 2 ngram-type 1 keybr.com

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Words are effortlessly ﬂowing from my ﬁngertips, now what?

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Shortcuts ⌘

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But there's soooo many of them! And no way to use the same shortcuts across all apps

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What if I told you...

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...you can

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The programs Andrew4 (and I) use ‣ Karabiner-Elements to remap keys on a Mac ‣ Goku to conﬁgure Karabiner using JSON ﬁles ‣ Hammerspoon, a Mac automation tool (think macros) 4 Tighten blog: How to train your keyboard

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"Hyper" and "Meh" keys ‣ Hyper: ⌃+⌥+⇧+⌘ ‣ Meh: ⌃+⌥+⇧

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Actions you can use your Hyper key for... ‣ Hyper + S → Open Slack ‣ Hyper + E → Open code editor ‣ Hyper + K → Open my console ‣ Hyper + B → Open Browser ‣ Hyper + P → Open command palette ‣ ...

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Aliases

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"If I create aliases for commands, I will forget what the real commands are " — Me in 2010

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Spoiler alert You wont...

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Snippets

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CONCLUSION

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Links and Resources (keyboard layouts) ‣ Keyboard usage Heatmap https://www.patrick-wied.at/projects/heatmap-keyboard/ ‣ List of split ergonomic keyboards https://github.com/diimdeep/awesome-split-keyboards ‣ Colemak Mod-DH homepage http://colemakmods.github.io/mod-dh/ ‣ Miryoku, the Colemak layer system I use https://github.com/manna-harbour/miryoku

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Links and Resources (touch-typing training) ‣ Keybr: to incrementally learn the key placements https://www.keybr.com ‣ N-gram type: practice typing the top n-grams https://ranelpadon.github.io/ngram-type/ ‣ Monkeytype: practice whole words and get cool stats about your typing https://monkeytype.com ‣ Typeracer: if you ever want to race your friends https://play.typeracer.com

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Links and Resources (shortcuts and automation) ‣ Tighten Blog: How to train your keyboard https://tighten.com/blog/how-to-train-your-keyboard/ ‣ Home row modiﬁers https://precondition.github.io/home-row-mods ‣ A useful Caps-lock key https://brettterpstra.com/2017/06/15/a-hyper-key-with-karabiner-elements-full- instructions/ ‣ Karabiner-Elements https://karabiner-elements.pqrs.org

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Links and Resources (CLI tools) ‣ j: quickly navigate directories on the command line https://github.com/wting/autojump ‣ bat: a cate clone with syntax highlighting and git support https://github.com/sharkdp/bat ‣ fzf: a fuzzy ﬁnder https://github.com/junegunn/fzf ‣ tldr: it's like man distilled to only what you want https://github.com/tldr-pages/tldr ‣ zsh-autosuggestions and zsh-completions so ﬁsh users will stop laughing at you https://github.com/zsh-users/zsh-autosuggestions https://github.com/zsh-users/zsh-completions

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Links and Resources (Other) ‣ "Voice Driven Development: Who needs a keyboard anyway?" by Emily Shea https://www.youtube.com/watch?v=YKuRkGkf5HU ‣ Computer Related Repetitive Strain Injury http://rsi.unl.edu ‣ Vimium: vim bindings in your browser http://vimium.github.io ‣ Alfred: Spotlight on steroids, with workﬂows for many apps https://www.alfredapp.com

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Thank you