alt Hacker NewsI'd love to hear the inside story of GitHub's migration of their core product features to React.
It clearly represents a pretty seismic cultural change within the company. GitHub was my go-to example of a sophisticated application that loaded fast and didn't require JavaScript for well over a decade.
The new React stuff is sluggish even on a crazy fast computer.
My guess is that the "old guard" who made the original technical decisions all left, and since it's been almost impossible to hire a frontend engineer since ~2020 or so that wasn't a JavaScript/React-first developer the weight of industry fashion became too much to resist.
But maybe I'm wrong and they made a technical decision to go all-in on heavy JavaScript features that was reasoned out by GitHub veterans and accompanied by rock solid technical justification.
GitHub have been very transparent about their internal technical decisions in the past. I'd love to see them write about this transition.
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If it's fast people don't stick around for as long. Make it sluggish and you get more stonks analytics.
In answer to my own question about in-depth decision making, I just found this presentation from February 2025 by seven-year GitHub veteran Joel Hawksley: https://hawksley.org/2025/02/10/lessons-from-5-years-of-ui-a...
Relevant quote:
> But beyond accessibility and availability, there is also a growing expectation of GitHub being more app-like.
> The first case of this was when we rebuilt GitHub projects. Customers were asking for features well beyond our existing feature set. More broadly, we are seeing other companies in our space innovate with more app-like experiences.
> Which has led us to adoption React. While we don’t have plans to rewrite GitHub in React, we are building most new experiences in React, especially when they are app-like.
> We made this decision a couple of years ago, and since then we’ve added about 250 React routes that serve about half of the average pages used by a given user in a week.
It then goes on to talk about how mobile is the new baseline and GitHub needed to build interfaces that felt more like mobile apps.
(Personally I think JavaScript-heavy React code is a disaster on mobile since it's so slow to load on the median (Android) device. I guess GitHub's core audience are more likely to have powerful phones?)