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On my system, a long running Slack process uses about as much memory as a Finder window.

On mac, slack uses macgap, not electron.

Was this a recent change? Because electron's homepage[0] still shows that Slack was built on it.

On windows (and I guess on linux) they use electron.

But what about power usage? Battery life is important.

I can't say I've measured it quantitatively, but it doesn't appear to have a huge effect, but I also don't need to be untethered all day long.

When I check the battery status on my Mac, only Chrome is listed in the "Apps that use significant energy" list.