Any issues with hooking up two computers to one set of speakers?

Hello,

I've got two computers that I'd like to hook up with one set of speakers, and I'm wondering if there is any issues doing this just using a Y-cable? The only thing I could think of as a concern is that there's two outputs on one line...not sure if that's ok. This would all be over TRS connector / jack plug. Normal operation would be that only one computer is outputting at a time, but I could possibly forget and have them both outputting at the same time. I'm guessing this is something where a receiver would normally be used, but is there any problem with ghetto-rigging it like this?

Please help

I didn't find the right solution from the internet.

References:
https://arstechnica.com/civis/viewtopic.php?t=1180361
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Thank you

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