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Donny (강동윤)
Zephyr Cloud
@kdy1dev
CEO of @delinoio / Creator of @swc_rs / Opinions are my own / Formerly @vercel, @deno_land
kdy1.dev
Joined April 2016
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  • user avatar
    Donny (강동윤)
    Zephyr Cloud
    @kdy1dev
    Aug 3, 2022
    Thank you for inventing javascript
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    Donny (강동윤)
    Zephyr Cloud
    @kdy1dev
    Oct 28, 2022
    I'm announcing that my new TypeSript type checker is now open-source and I'll use the Rust version. github.com/dudykr/stc Read more about it at kdy1.dev/posts/2022/10/…
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    GitHub - dudykr/stc: Speedy TypeScript type checker
    From github.com
  • user avatar
    Donny (강동윤)
    Zephyr Cloud
    @kdy1dev
    Feb 18, 2023
    You should prefer readability over performance in almost all cases
    327K
  • user avatar
    Donny (강동윤)
    Zephyr Cloud
    @kdy1dev
    Jul 21, 2021
    I recently joined @vercel. I used lots of time to reduce the build times of web apps and I'm going to improve it of next js. I love the motto, "Make the web faster".
  • user avatar
    Donny (강동윤)
    Zephyr Cloud
    @kdy1dev
    Jan 25, 2022
    These are my plans for the type checker. kdy1.dev/posts/2022/1/t…
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    Donny (강동윤)
    Zephyr Cloud
    @kdy1dev
    May 8, 2022
    Did you know that these two codes both print "PASS"?
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  • user avatar
    Donny (강동윤)
    Zephyr Cloud
    @kdy1dev
    Jul 4, 2025
    This is my last day at @vercel! I'll take some rest and focus on @swc_rs for a while.
    51K
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    Donny (강동윤)
    Zephyr Cloud
    @kdy1dev
    Oct 15, 2022
    Still, I'm not sure if I'll reveal the new TypeScript type checker as an open source. I don't mind individuals using it without any reward for my effort, but I don't want big companies to use it for free. This is the fundamental problem of the open-source world IMO.
  • user avatar
    Donny (강동윤)
    Zephyr Cloud
    @kdy1dev
    Jan 2, 2022
    SWC (swc.rs) reached 19000 stars! Thank you everyone!
  • user avatar
    Donny (강동윤)
    Zephyr Cloud
    @kdy1dev
    Sep 30, 2025
    I'm exhausted by open source. Even the company I trusted has made me not want to do open source anymore. I'll still do it, but I need to take a break for a while.
    48K
  • user avatar
    Donny (강동윤)
    Zephyr Cloud
    @kdy1dev
    Aug 4, 2021
    SWC ( swc.rs ), the javascript/typescript compiler written in rust, reached 13000 stars. Thank you!
  • user avatar
    Donny (강동윤)
    Zephyr Cloud
    @kdy1dev
    Aug 23, 2022
    Arrow functions are not anonymous. I didn't know this.
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    Donny (강동윤)
    Zephyr Cloud
    @kdy1dev
    Oct 13, 2022
    First public status update for my new TypeScript type checker. kdy1.dev/posts/2022/10/…
  • user avatar
    Donny (강동윤)
    Zephyr Cloud
    @kdy1dev
    Nov 8, 2021
    swc ( swc.rs ), which stands for speedy web compiler, reached 17000 stars. Thanks!