Great watch but to summarize:
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Bun beats Node/Yarn for package installation
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Somewhat better API/DX in some ways.
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Loses poorly in testing performance
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Tons of incompatibility issues/performance issues in other areas.
General summary: Just don’t use Bun yet, seems like it needs some more time in the oven.
Build times in nodejs are not so great in even medium size projects if you make heavy usage of advanced typescript features - either yourself or through libraries like zod. So if something makes the nodejs runtime faster, it could potentially make ts compiler faster too - for which I’d be very grateful.