Screenhero

~ the obituary ~

screenhero was a tool for a very specific thing i do recognize, two programmers working on the same screen from different cities. both cursors moved at once and either person could grab the keyboard, so it felt less like watching someone share their screen and more like sitting at one keyboard together. i did not use it in its day. by the time remote pair programming was normal in my kind of work, the thing everyone pointed back to as the good version was already gone.

it came out of a small company founded in 2013 and it earned a real following, mostly among developers, because the latency was low and it stayed out of the way. that is harder than it sounds. sharing a screen so a second person can actually work on it, in real time, without lag turning it into a comedy of missed clicks, is a genuine engineering problem, and screenhero solved it well enough that people got attached.

then slack bought it in january 2015. slack was growing fast and wanted voice and screen sharing inside its chat product, and buying screenhero got it the team and the working technology in one move. the standalone app kept running for a while, with new signups shutting off and then the whole thing winding down by 2017. the founder ended up leading the group that built slack calls, which is the feature screenhero became. i never touched the original. i have used the descendant inside slack many times without thinking about where it came from, which is its own kind of ending.

~ the case file ~

~ what got buried with it ~

the standalone screenhero had users who did not want it folded into a chat app, they wanted the focused tool that did one thing well. when it shut down there was a real gap, and a small crowd of replacements showed up specifically to be the screenhero that was missing. you can measure how good a dead tool was by how many products get built to replace it, and screenhero scored high on that.

~ the inheritance ~

the feature lived on and got enormous distribution. screen sharing and calls inside slack reached far more people than the standalone app ever did, which is the usual trade in these acquisitions. the reach went up and the thing itself disappeared. for the developers who loved the original, that is not really a win, it is just where the technology went to live.

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