The K6 is not programmable out-of-the-box, but it seems some people have successfully installed QMK firmware on it (with caveats); https://github.com/CanUnesi/QMK-on-K6/
If you just want to try the numpad thing out, it might be easier to use something like AutoHotKey. Here’s an example of a script that uses CapsLock to toggle the numpad layer.
Of course, AHK scripts only work with the computer you’ve installed them to, whereas using programmable firmware will work regardless of which device you connect your keyboard to.
Yup, sure, but this is basically a “no true scotsman” argument, which isn’t at all what the “AI” hype is about.
Put yourself in the shoes of some naive corporate exec. You want the software to get made, but you don’t want to pay for it. To you, people (especially experts like programmers) are an expense. You’d very much like to skip that pesky part and go straight from an idea to the product. This is what the “AI” hype is largely about.
“AI” companies are trying to set up a narrative, in which programmers can be replaced with LLMs. Execs don’t care whether you’re coding or not - they care about expenses and profits, and they know a team of programmers is more expensive than an OpenAI subscription.