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If you know how to do all of this, you probably make more than $100 per hour at your day job (maybe a lot more!).

In which case you can jump through all those hoops, or you can just go to work for 30 minutes and then buy it.

I think you’re way off - I don’t know people making that much, but I do know several people who are well capable of that, and have literally embedded NFC tags with their own data in 3D printed things they’ve made. They’re making <$100K (pre-tax)

making more than $100 per hour, post tax, puts you somewhere at $400k+ income per year. outside of FAANG this is nearly impossible. even within it it's not so easy lately.

I bought it because it did not require a subscription and because it sounded like a smallish business - told me I had to wait a few days for it to be 3D printed.

I love the simplicity of it, the fact that it’s driven by fulfilling a need and not by greed.

Not affiliated in any way. Wish I had given this to myself years ago.

Also wish I had come up with the idea myself.

I would go limb and suggest that, maybe, developing the app is the expensive part.