Show HN: Scan QR codes to check in guests registered via Google Forms

Thank you!

The main platform is currently used by national post offices (physical mail tracking), health organizations (biological samples), banks (fixed assets tracking), manufacturing plants (parts inventory tracking), etc.

QR codes make it easy to avoid data-entry errors in quite a large set of use cases with physical objects.

This is WONDERFUL.

EDIT: nto "But for use for" -- I meant "But in ADDITION" --

But - for tool/item/inventory management in a garage.

Get a cheap label printer [0], create a form of your tools/inventory with a matched set (code on tool, code on location of tool home) - Tool home has a QR code that leads to a tab in the sheet with all the tools that live in that location, container.

Put airtags on the high-value tools, with links in the sheet to those.

but scan a code on a tool - and it tells you tool details, including owner, home, whatever data properties you like.

If you like barcodes/QR codes and GIMP - You will love BarTender (seagull Software [1])

It allows you to make ANY type of barcode you want, QR code, badge, etc etc.

Its AMAZING [Free*] software. (You only pay a cheapo $500 lic if you have a high volume printer for printing thousands of product labels fast - eles; its a super powerful free program with an utterly amazing and knowledgable supprt staf f (no affiliation)

Here is a test I did making "Card Carrying Conspiracy Theorist" badges based on a comment from someone saying they were one. THe QRs go to the /r/ profile - as does the bar code.

The image can be set as a template then do a merge for pics and employee data from a sheet....

https://imgur.com/a/eyAxpcb

(I like Guilloche designs (the swirly woven bits you see on money)) and so I used that motif - but the QR code placement and calc is automatic via Bartender.

I made a bunch of labels for a cannabis company - and I tied the QRs through a tinyURL which did all the geocoding of the QR scanning so that we could send product to a particular place, and then track where and how many people scanned the QR (the QR went directly to the lab test reports for the makup of the cannibis, CBD, etc...

So, then you could measure which market the CBD or THC were drawing most interest - and see how sales were vs scanning.

anyway - QR codes get a bad wrap. They are lame for menues - but a goot idea is to scan a QR code, then just have a folder of scanned links for purusal later - as opposed to launching safari when I clearly dont ue safari. :)

[0] https://www.amazon.com/qr-code-printer/s?k=qr+code+printer&p...

[1] https://portal.seagullscientific.com/downloads/bartender

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>>>scan a QR code, then just have a folder of scanned links for purusal later

These get submitted to a personal GPT and it develops a learning module for you on your home portal which then gives you the run-down of all it has learned from that location QR or Context QR or Porduct QR.

But without a sticker - it will use either:

1. handheld laser engraver of the QR

2. an AI derived location based on meta data

3. an AI location based on image analysis

(forgive me if I am snowballing too much on HN, but I truly believe we are at an inflection point with a velocity that is being masked from us - SAs and his Ilk are not giving the fold the truth.)

The issue is, at least for me, I consider all QR codes as unsafe. Unfortunately, you don't know where the QR code leads you before you scan it and then it is already too late. So you can't do the equivalent of inspecting the link before you click it.

Recently we were in a restaurant which required scanning a QR code to get served (for some reason asian restaurants like doing this). The codes were labels attached to the menu. I told the waitress "I can't scan the codes because I don't know who put the QR codes there". She told "the codes lead to their website". I told her "I don't know that, it takes a moment to print a label that looks exactly the same to my eye". She told me "it would then not point to their website". I respond if she knows what MITM attack is. She responded "if you can't afford a phone we should leave and go somewhere else".

The funniest is those QR codes left at random in public. I imagine scanning these is like finding a random pendrive and putting it in your computer.

There’s apps that just scan the qr code into a text field no matter what its content is, then you can inspect the URL manually.

Unfortunately there’s a deeper problem in this security model, in that only a tiny tiny fraction of the web’s userbase knows how to assess a URL, and even experts can easily struggle

> Unfortunately, you don't know where the QR code leads you before you scan it and then it is already too late.

iOS shows the domain if it is a URL and you have to tap it. It's no different from tapping on a link on a website, which I would say is more insecure since you don't even get the domain info before tapping.