I feel that barcodes (usually QR Codes) are underutilized; I forgot about them until I saw this post.
I think barcodes could potentially be used to quickly transmit preset information to war victims.
They could be used to transmit information on platforms that censor: Sharing Lemmy posts on Reddit (even though it’s currently redundant due to federation). (I just thought of this.)
A loosely moderated place to ask open ended questions
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The most creative use I’ve personally come up with, is to create a QR code for Croc codes when i want to transfer some files to my phone. I know that I could just use a USB cable, but I’m on Artix have procrastinated looking into how to do that.